Lureman,
I completed the installation of floats on my Nexstar around Thanksgiving. We have had significant snowfall in Chicago recently so I conducted the test flight about one week ago. The floats were purchased from Falcon Trading Company,
http://www.falcon-trading.com/prod.c...Float%20Planes & are sold for $90 as "Float Set for Trike Gear Models." I removed the speed brake & wingtip droops last Summer & the first flight with the floats was conducted in about a 12-15 mph wind condition. All I can say is AWESOME, the floats did not change the CG & the flights were more stable than with the wheels on. I attempted to mount the GEE BEE brand floats & failed miserably. If you want to be flying after about 1 hour of labor, then buy these floats. I will tell you that the wing's angle of incidence adjustment (preferably 1 degree) is very simple because one screw on the nose gear allows you to move the leading edge of the wing up & down in relation to the floats. FYI...I am an amature pilot & have no build experience so this is a no brainer for your Nexstar. Practice on the snow, rather than water, because you won't need a canoe! Have fun.