I did a similiar thing in about 1990. I had a head on collision with a car, which ripped the right hand footpeg and the fuffler off my GSXR11. Naturally, as my foot was with the footpeg at the time, it ended up pretty grumpy. I actually broke three of the bones on the top of my foot and had it in plaster. Problem was, I had a weekend away in the snowies booked on the first weekend and a Phillip Island track day the next weekend. So, I went and bought a 2nd hand pair of boots which were a couple of sizes too big and just used the right boot, with my normal boots on the other foot.........true story....but it gets more incredulous..........but I have pics as proof!! And a vid somewhere too!!!
So, I go off on the long weekend away in the snowies. About two hours into the run, I am in screaming pain and my ankle will not hold the foot flat on the peg. It keeps sagging down and dragging on the ground in right handers......fucking ouch it was let me tell you........... So, one of my genius mates, pulls up at a wreckers, finds some scrap metal and wire, being some heavy gauge fencing wire and a car exhaust heat shield.......... He wires the brake pedal to the frame rail so it won't depress, wires the heat shield to the footpeg and brake pedal and Voila.......Harley style running board for my GSXR11!!!

My crutches slotted neatly onto the bike, with the tips sitting on the crankcases and the handles ockie strapped to the HUGE gearsack rack that was the norm of the day.

So there I was, riding in the snowies with all my mates, having to stop in gear and drop the side stand all in one go whenever we stopped anywhere. But it was fun.....
Then, the next weekend, I did the track day! The scrutineers were not all that happy with my bike, so I removed all the shit, had it passed and then went and put it all back on again!!

Did my track day and still managed 1'50"s on the old girl!!! Those old GSXR11's sure had some clearance!!!
Proof attached.....
"I hate to advocate drugs, alcohol, violence or insanity to anyone, but they've always worked for me" Hunter S. Thompson.
There are really only two questions in life. 1.Which way do i go? 2.What is the lap record?