Are you planning on collecting the entire range? Time to start looking for a 6.0 now!
The sailing center my wife works for may be looking for a serviceable RIB, 4mR-6mR, if you come across another, or want to get rid of one of these two. They have a decent 50 Honda to throw on something.
And if you're
really looking for something to do, you can overhaul my 5.4!