FAQ3: How do I mount my Floats?  

There are MANY ways to mount the floats.  The easiest is to get an identical set of gear legs and stick them to the bottom of the airplane.  
If you have a taildragger, attach the new set just behind the cockpit.  Most probably you will need to epoxy a plywood plate into the floor just behind the cabin area of the plane.  Line up the new legs, drill through, and bolt the struts on using small machine screws and tee-nuts.  

If your plane had a nosewheel, Use the mains it came with and bolt in a  new set of struts in the floor under the tank.  Remove the Original Nosewheel.  
Alternatively, Replace the nosewheel strut with a T-shaped strut fabricated from the same-size music wire.  Disable the nosewheel steering.  
Nosewheel
Attaching the legs to the floats depends on how the floats are made.  Some floats come with mounting tabs as shown above.  In that case just bolt the landing gear legs to the tabs.  
USE SELF_LOCKING NYLON-INSERT NUTS.  Don't ask me how I know this, but it was not pretty.  With the T-nose strut above you'd use two wheel collars on each side, and sandwich the mounting tab.  Hold the wheel collars together with pliers when you secure them.  It's important to grind flats in the axle to accept the setscrews so the wheel-collars don't slip.  

If the floats just have a plywood spine on top, it's effective to get 4 nosewheel blocks and attach them to the tops of the floats. Put the axles thru the blocks and secure with wheel collars.  Again, make sure these cannot come loose.  Again: grind flats into the axles to accept the setcrew in the wheel-collars
axlelow wing
The float leg assembly should be as rigid as possible.  If  you are using original wire gear or if your floats flex when you are cruising through waves it's a good plan to tie the floats together with Spreader bars.  Actually they should have been named "ANTI-Spreader" bars, but they are horizontal links between the tops of the floats that brace the assemblies.  Also think about using a drag link from the upper front mount to the lower rear mount.  This keeps the float assembly from deflecting aft when you hit a wave.