Heel/toe Shifter For T120

All easily doable as all you need is the splined boss.
Would this be aluminium or steel?
That may make a difference to some as different equipment is required but I could do either at home,
it's a pity you're not closer.

 

If you could make the bits up, and create a mock up with correct angles (using tape and bits of string if need be) then we could discuss it further.
All very doable, but the positioning needs to be right to be effective especially in your circumstances.
I've made/modified clutch levers before now for small span hands and the difference in bike control is really noticeable.

 

There's a heal toe shifter that comes with the Triumph Footboard Kit (A9770117) so a Triumph part does exist...

 

The forward control heal/toe shifter connects to the gearbox spline by a rod. I'd guess the rod would be easier to adapt than a shifter casting?

 

Sorry that your health issues continue. You've had some good ideas and suggestions already, but just to throw another into the mix, there's a motorcycle engineering outfit near me who might be able to help.

Motorcycle Repairs in Chester | A & M Motorcycle Engineers (thechickensheds.co.uk)

They claim to be able to to do control modifications, I've not used them yet, but friends have used them for servicing and found them good to deal with. I'm hoping to use them later this year for a mod to my bike.

I know they're not local but they may be able to advise or help at a distance.

Look after yourself.

 

Are you wanting pegs or footboards?
I'd suggest you take a test ride from a dealer with a footboard model and see what your body thinks is best.

 

Try this group. https://nabd.org.uk