If you have the make and model and a list of the options installed you have all the info you need to shop around. Get on the net and find all the RV Dealers within a distance you are willing to travel that sell that brand. Start making calls asking if they have the unit you want on the lot. When you find the ones that do, have them email you the list of options that are on the unit. Then start asking for prices. Make sure they know you are shopping around. When I did this the two dealers I talked too both told me to call back if I get a better price. And guess what. I got a better price! Went from a "show special" of $22,000 where I first saw the unit to $13,200 when I bought it.