Your Bosch saw, although at the top of the heap for its class, is a portable job-site saw. Your recent project involves large pieces of sheet goods which are a challenge on any saw not properly equipped but, really awkward on a smaller, lighter machine.
The reason I point this out is to make sure you are not making a long term decision on your most recent experiences. My dad spent a load of dough outfitting his shop and it turns out he slipped into lathe land. Tools we both have that I use so much that I have upgraded them, he will hardly use.
Options:
First an opinion; I would not "upgrade" to anything in a contractor format so, if the Saw Stop you are talking about is not a cabinet saw format, I'd pass.
- Build you current saw into a base to compensate for the lack of stability and capacity. This could be a fun project, be tailored to your space but would surely involve throwing a couple hundred bucks or so at a decent fence.
- Buy a better quality hybrid or lower cost cabinet saw (with a riving knife) for around $1000 - $1500. There will still be some outfeed requirements but that is true for all saws dealing with large or long material. You will not build built-ins forever, sooner or later you'll need a dresser, a table, a desk.
- Assuming it is a cabinet saw format, buy the Saw Stop and have the advantages of a cabinet saw plus the "flesh seeking saw blade" control technology.
None of this rambling really tells you what to do but, from my travels through different saws I can say that I learned:
- I don't use sheet goods near as much as I thought I would and am glad I did not outfit my shop like I built kitchens for a living; it wouldn't suit what I have grown to do.
- despite throwing every improvement and after-market add-on I needed to add to my contractor saw, I still needed to move on.
- I bought one of the best rated hybrid saws of the time and it has served me very well (cabinet saws of the time started at about double the cost).
- If I were to choose from saws available today I would spend an extra $200 - $300 and get a 3HP cabinet saw with a riving knife.
That's my contribution.