BF225A5LC $22,329.00 20 inch shaft, power trim and tilt
BF225A5XC $22,569.00 25 inch shaft, power trim and tilt
BF200A5LC $21,299.00 20 inch shaft, power trim and tilt
BF200A5XC $21,679.00 25 inch shaft, power trim and tilt
These are the suggested retail prices (Canadian Dollars). Do honda do a 250?? couldn't find any details.
Both produce their max power @5500rpm. If it were me I would go for the 225s. You will get the same speed as you would using the 200s but lower down the rev range, putting less stress on the engines and improving consumption, engine wear, etc.
That RIB is gonna be quite stern heavy, I would check that is within the manufacturers max weight and be sure you counter balance with seating, fuel tanks, etc. as far forward as possible.
2 x Honda 250/225: 544kg or 1200lbs
If In Doubt, Go Flat Out!!