After reading the horror story that was Tiny trying to get his twin carbies running, I'm thinking of doing the same thing!

( I think it's more of an operator problem

)
I'm considering carb options for Dad's Morris 1100 and we were going to put a standard single 1 1/4" SU on. But, I have a complete Twin 1 1/4" SU setup off a Midget(?) which is manfold, shields, air filter, etc that I don't want to leave sitting around. So how hard is it to find an 1 1/4" SU with the float bowl on the left?
Has anyone got one? Let me know how much you want for it
Cheers,
Sam
<EDIT> Or what's involved in making a pair out of carbs with the bowl on the same side? i.e: choke-wise?