Stop it. Really. I mean it. Pick a height between your thigh and waist that seems right. You’ll adapt. Don’t worry about your back. You’ll adapt. If you are really uncertain, make it a little taller and then cut down the legs. After a decade or so, your work habits will put a magic number in your head. You’ll have built enough furniture that you will know your number. Until then, pick a number.
If you’re more interested in working with wood rather than machining it, you will be relieved to learn that expensive powered machinery isn’t required to build furniture. You can also forget the dust masks, face shields and hearing protection since many of the safety concerns related to woodworking—the use of power tools—are eliminated. In this book, you’ll learn to set up a hand-tool woodworking shop, then discover the toolset, practice the skillset, and understand the mindset—effectively completing a comprehensive course in hand-tool woodworking.
The Workshop Book: A Craftsman's Guide to Making the Most of Any Work Space by Scott Landis. This is not a new book - it was written in 1987. And the photographs reflect that. But what it lacks in that flip-through-the-pictures-and-get-major-workspace-envy, it makes up for in the actual text. It provides, mostly, creative solutions for a variety of different tasks from real professionals working in limited space. If you're interested in upgrading your space or building your dream shop from scratch, this really is a good place to start. It doesn't have a ton of up-to-date and practical advice; its more of a reflection on the nature of workshops in all their variety. And that never goes out of style. 
The Handbuilt Home. Ana White has created a wonderful DIY book. It’s filled with 34 projects she describes as simple, stylish, and budget-friendly. And you’ve probably already guest that they are related to improving your home. Each project has diagrams and instructions. And she tells the level of difficulty and project costs. This book resonates with many readers who want to make things themselves, but they may not have the fancy tools or the budget. Ana shows you how to make beautiful and affordable DIY projects.

If you remember, when drilling the MDF I finished the holes from the other side using a Forstner bit. It made for a clean hole, but the positioning wasn't as precise as I really wanted. So for this, I decided to clamp a length of scrap MDF to the back side, and to drill straight through. My Forstner bits were too short, so I bought an extender. And then I found that the spade bits I was using gave a cleaner exit hole. Whooda thunk?
The last thing is to semi-permanently attach the bolts for the vises. Given the amount of work necessary to get to the bolt heads, once the top is joined, I had intended to tighten them up so they wouldn't spin, and lock them that way with blue Loctite. (That's the strongest non-permanent grade.) That didn't work. What I found was that the bottoms of the countersinks weren't quite flat, and when I tightened the nuts down that far, the ends of the bolts would be pulled far enough out of alignment that the vise bases would no longer fit. In order for the vises to fit over the bolts, I had to leave the nuts loose enough that the bolts had a bit of wiggle - which meant that they were almost loose enough for the bolts to spin. So I put Loctite on the nuts, to keep them from unscrewing, and filled the countersinks with Liquid Nails, in hopes of keeping the bolts from spinning. I considered using epoxy, or a metal-epoxy mix like JB Weld, but I didn't have enough of either on hand. It seems to be working for now, though the real test won't be until I have to take the vises off.

Another aspect that might irk some buyers is the fact that the capacity of this bench is less than great outside of weight. The top’s surface area is a bit on the smaller end, though its length is more in line with larger models. The width though is less than two feet which can limit some projects. Similarly, the vice capacity is the second smallest on our list at 4 ½”, though this too can be modded with optional additions.