Quoted:
Im building an SBR and since I will no doubt have this rifle for a very long time, if not forever, I have been picky, or actually stuck on what parts I want to build it with and I need some help with some questions I have.

The most un-convoluted way I can ask this is:  Can I run a suppressor with a switch block with a piston system.

However its more convoluted and complicated than that because i have yet to buy the handguard for this and not sure on what length to buy because I have not answered the question of were im going with this build yet.  I have a 10" noveske barrel with a low profile gas block.  In digging through my parts box, i do have an old adjustable gas tube.  I also have an Adams piston system.  I have an AAC m42000 suppressor.  

I was thinking about purchasing a noveske switch block, but it also seams like there are other switch systems out now?

After running a piston system for the last year I really love how clean my gun stays.  Conventional direct gas in so filthy. But if a piston with a suppressor isn't a good idea, then id like to maybe run the hand-guard a little longer covering the low profile gas block and then just use the adjustable gas tube which may or may not be accessible under the hand guard.