Got all of the old system removed today and moved to a friend's shop. He'll make some improvements over what I had and get it installed.. His shop is a bit smaller than mine and the bulk of his tools are near the collector so, it should be a good system for him.
Senco is my main gun too. I bought my first ones from a salesman that came in on a boat. I asked him what in the world he was doing selling nailguns from a boat for. He said it was perfect. All he had to do was go out on the lake, turn the motor off, and listen for hammers. That was 1975, and I'm still using all five of those first ones, along with a full quiver of others now.
Oh, I think I get it now. You modified the guild build SketchUp plans to accomodate the crisscross mortise by widening the leg slightly and a slightly shortened tenon on the leg vise side vs modifying the current Benchcrafted plans which have the 3/4" tenons on the front stretcher and barrel nuts.
i built mine back in '89 bigarm, 10X12, wish i could have built bigger but thats all code would allow. i would add +1 to cement floor, much nicer and will last forever. also consider where your power will come from, do you have to put it in underground or overhead? and how much power will you need, 110 or 220? i have 110 in mine, comes in underground. i put motion lights on the outside and a small panel inside and ran a bunch of outlets, plus i put in a window in case i ever want to put in an air conditioner. and depending on where you live if its on bare ground you can put it just about anywhere on your lot, but if cement it probably has to meet some kind of city code