about 35 to 40% off msrp
no trade you can do very well on the deal.
also try to get 'free stuff thrown in' like 'add upgraded vent for free' with installation into a room etc. Their price to deal with their service is easier sometimes than to get more money off a list price. We always came out great....like free install more D-rings into toyhauler floor etc
Even at the end get more as in I got a free Tshirt off the retail store and a mug with their name on it for free cause I wanted just a bit more and by the time they were done with ME being a pain, I got those and was happy about it HAHA
best of luck!!