We looked at a trailer back in June. Sticker price was $80K or so. However, when asked, they were easy to tell me the sale price was $65. We didn't bite, but gave them our info. I have had 3 emails from them since, each time the price is $3K less. Not sure if they are selling or not selling trailers. But with the high interest rates and inflation of prices over Covid. Prices are or were as high as ever, dealers seem to be willing to deal just to sell a unit.
Do some internet research to see what "sale" prices other dealers have on that unit. Offer them a similar price if you are comfortable with that and go from there. Or, try the 35% and see what they say. Most likely they will come back with a counter offer. But, I think the days of paying MSRP are gone for now.