Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
I used static for years, and put out good prints on a manual with them..or at least I thought. When I went automatic I bought all Roller Frames, with shurloc panels. One thing that will really help lessen the learning cure is buying a Roller Master table, you can hit the ground running with rollers with shurloc's and the roller table...there really is no learning curve using them. There are plenty of deals out there, for instance, I got 100 M3's and a roller table for 3K. There are some 25x36 M3's on M&R's board, brand new for $65 a piece I think. But if you keep looking and don't mind cleaning up some dirty ones, you can get a much better deal. If it were me, I would buy the roller master table first, then start adding Rollers into the mix as they come available.
Ha..yeah. Roller table for $1K and 100 M3's for $20 each. Most still had mesh, but I did have to take a lot of ink and junk off of them. They look great now after some cleaning. It looks like you do quite a bit of oversize, so I think staying with all 25x36 would be a good idea, you can always print small on an oversize screen.
You can use carburetor cleaner to get off almost anything like tape and other gunk from the roller frames.