I set something like that up for my fathers bench.
He ties flies, shotgun reloads for 12,20,28,and 16g. As well as some Rifle
I built the table top with one piece of MDF, and then two pieces of a hard wood plywood, all 3/4" thick. Glued and screwed together. The top piece was notched out 14"X 19"long. I then Glued and screwed 1" thick Oak cut at a 30 degree angle to the edges of the cut out on the table top.
The idea is that when it's done, The edges look like Dove tails. I then drilled 4 holes in the table top in the area that has a notch, for T bolts.
I then cut a 12"x 18"Long pieces of plywood for each thing he is going to mount (plus 2 extra) while I was at it, and cut these at the same 30 degree angle as before and then cut in 3/4 wide dado's for the t track on the bottoms. I then mounted another piece of plywood on top of these and then mounted the presses and fly tying vise to these. for the reloaders I put a little but of moulding around the edges that stand a little proud to catch anything that might roll away.
Now he keeps each of these on a shelf with a pillow case over them, and then when he wants to use one, he just loosens the hand bolts on the bottom of the table top, slides out the last one and slides in the new one and tightens it down. I think the dove tails and t-bolts and t track gives it plenty of strength.
When he is done, he can take it out and put in a blank insert that i made for him, and the table is flat and smooth for anything else he is doing.
The only modification that i did have to do after the fact is to drill a 2" hole in the one plate he uses for 12G and a matching hole in the cut out area with a little PVC attached to guide the 12G shells to a 5 gallon bucket. It's a progressive Mech and as the done shells are spit out, they drop into the bucket. I also put the bucket on wheels so he can drag it over to a couch to watch tv while he is filling boxes for the range with the 12 g shells.
I plan on doing this same set up for me when i get my own place. (renting now)
He likes it, but almost never uses it since his new hobby is RC planes. and the bench is covered with planes, and the stuff that comes with that.
