Hi Billaridoo,
A RIB does not look that impressive as that of a state of the art bass boat, but it certailnly can do the job!
I got rid of my Splash Bass and invested in a 4,5m Gemini Waverider with 2 x motors, which I have converted into an all-rounder - lifewell etc. I can now use the boat for Bass / Artlure as well as for off-shore fishing.
The challenge is to fit a bracket to the nose in order to fit your trawling motor. With some planning this can be done easily.
A RIB is a very stable (and higher) platform to work from and with small motors very economic to operate. You also do not need that a strong trawler motor.
I can now handle bad water conditions and need not to run as with the Splash Bass. Floatation is not a problem as you have 3 x seperate chambers to keep you afloat.
I have strenghten the nose and sides with extra protections strips / ribs against trees and other objects - possible punctures are the one most serious thread to an inflatable, but yes you can repair it on the water in case of an emergency. Before buying the boat I would advice that you take the boat to a dealer to inspect the pontoons for punctures and proper adhesion to the hull, as a new pontoon can cost you up to R13000-00.
I will send you photos of my boat by next week if you are interested to see.