Whats wrong with a stock Bug steering columb? I cut my shaft and tube 2" at the bottom and re-ground the recess for the sleeve bolt. I just bought a Grant wheel and it looks great.
If memory serves me well, I think that the MGA or older models of the MGB have a long levered indicator switch on the dash board. The lever is long enough to be reached with the finger tips while the hand is still holding the steering wheel.
Here is a stock 64 Bug column with an el cheapo Grant wheel and a VW turn signal switch with the wires run in the column. I don't think it looks too awful bad.