Rebate and assistance appreciated

Hello,
I had a few questions that anyone could help me with.
I’m looking to buy either a RZR 900 EPS trail. Or sportsman ( not sure what size) is the side x side better? I will be doing the majority of my ridding on trails. I never drove a side x side.
Does anyone know what the rebates are? I’m in Buffalo,NY (go Bills)
I’m leaning towards the RZR but I read a lot of good things about the 570 on here. Again the price and rebates will have a lot of influence on me decision. What should I expect to negotiate on price with the dealership and are rebates the same at all dealerships? (buying new)
Any help would be greatly appreciated