This looks like a nice aircraft but I do not see any N number and I'' bet that it is over the weight limit by at least 20 to 30 pounds. This can and should have a big effect on the price. I can not tell from the photo of the boom about the dent. What I think I saw was substancial.
Even a nose wheel airplane can be run off the runway by an untrained pilot.
Have the airplane weighed before you buy it if it is not N numbered with an airworthyness certificate or unless the owner has a valid weight and balance form showing a legal empty weight!
I could not find the FP-606 but the same weight warning applies.