What Daryl said.
There's a lot of different airplanes fitting the mission profile. 1000MSL and 2 People on board can be handled by most. I got my seaplane rating in a straight float 172 with a 160 horse engine. The only Amphib 172 I ever flew was a 172XP and it wasn't a Rocket, compared to its wheeled counterpart. Most of my training was in a 180 horse 172 and there was quite a difference, especially with the drooping ailerons. Other types included the Supercub, Husky, 180, 185 and 206 (Amphib) as well as a few flights with a 208.
The guy who's all happy with his Powerflow exhaust (look up Float Pilot
) hasn't been online here since June of this year. I think Tim's (look up Tim McCormack
) 172 has a 180 Horse engine and is quite a STOL monster. He visited recently, so maybe someone can reach him better than me. Both of their airplanes are not sitting on Amphibs, if I remember correctly.
Again - I don't remember any particular member with a Amphib 172 on this forum.
110K appears to be a steep price for a 172 with 14 year old paint and interior and 5 year old floats. Could be a beauty, too... no pictures, no telling.
We sold a 1984 2000TT 172 RG with a nice avionics stack and in perfect condition, fresh 3 Blade Prop & Gov w/ low time engine, 9/10 P & I for a lousy $65K.
Klaus can tell more about Wip floats and their weak-points and maintenance & upkeep requirements, than anyone else I know.