D-J you'll find the largest road block will be getting time on type. The Insurance man always wants to see previous float experience, regardless of TT. Thats how the 50 hour bush program came about... giving you the minimum 50 hours on floats to fly a C180 or the like. While there is added value of having a high time bush driver fly with you for 50 hours, it isn't always the best route to take. A number of people I know started out with just the 7 hour float rating. Within their first season or at the start of the second, most of them were in the air.
Given your TT it would depend how much money vs. time your willing to invest to get started in this area of the industry. If your going to go with a bush course make sure it's an actual float pilot with operational experience rather than some kid-instructor with a fresh seaplane rating! Which ever route you choose, one thing is certain; you'll never regret flying floats!!
