Henry Gorman will hopefully have 5.21 training approval to do endorsements early next year. Definately recommended!
Steve Krug who operates Beaver VH-SWB in Sydney does float endorsements, but not so economical as Beavers chew fuel.
Bill Lane up at Port Stephens also does endorsements for about $3k and 7 hours in a Hawk XP.
Gary took the Cherokee "Rateway Ayres" aka "Gateway Tyres" off floats. Not sure where the aeroplane is, but the floats are sitting out at BK.
Cheers
Disco