Recreation is up since people aren't traveling. It's just a supply and demand thing really. Stock ones have always been high, but it's not a buyer's market right now.
Fox Podium rear and Floats in the front. Never look back.
If you opt to keep your OEM rear shock, you really don't need a revalve.
I have run OEM with different springs on everything from +2 to +14 arms.
What kind of budget are you looking at?
They are Warrior shocks.. I run Fireball drag arms.
https://www.ebay.com/itm/FOX-FLOAT-3-FRONT-AIR-SHOCKS-13-DRAG-RACING-LOWERING-YAMAHA-BANSHEE-350/382372142396?fits=Year%3A2013|Make%3AYamaha&epid=1134379311&hash=item590727dd3c:g:2K0AAOSw~oFXHqUv
Alba has pretty good customer service. I ordered a set of beadlock wheels from them for my RZR and they fucked up the order. They then sent the right rear wheels out quick.
I have the Alba LT arms and have had zero issues. They are about 2 years old now.
Tell them you are a BansheeHQ member. I'm pretty confident they will take care of it.