EDSON developed the RLA (Remote Linear Actuator) Steering system specifically for the 272, however....they no longer list it in their catalog! They do have a newer system that will work, but finding a used system is hit or miss! If you could find someone parting out a totalled 272LE or a 272 with the wheel option, that would be easiest......the same system was used on the PEARSON 27 of the late 1980s as well. (I think this 27 was Pearson's attempt t ocopy the 272, had wing-keel, outboard rudder, diesel inboard, basically a Pearson "O'Day 272LE")
Adding a wheel to an outboard rudder boat is a project and it often means that you are making it tremendously harder to remove the rudder due to all the added linkages and such.
My $0.02 worth......stick with the tiller, not what you want to hear I know. Too late now, but it would have been easier to have bought a 272 that already had the wheel added....but as I say, too late now. Anything smaller than a 272 I'd definitely stick with the tiller.....but if you can find a wheel system (used) it should add value to the boat, maybe more than cost of conversion. If you end up having to buy new, the cost may not be repaid at resale time.