Call me narcissistic but I take a good amount of self-portraits.
You must have a great story to explain the two broken legs. If not, make one up. The shot of you standing on the sign would be a good place to start if you need fictionalize, though I'm guessing the true story is probably plenty interesting. Anyway, you've posted some great images here.
I used to free climb the sides of buildings with my camera bag and tripod to see the view from the top and take photos. One night I was just messing around and didn't have anything with me but decided it would be fun to work my way up an apartment building. About 15 feet up I started to slip and pushed off since I didn't want to fall on my back and landed on both heels very hard and broke pretty much everything below my knees. While in the wheelchair I discovered this site and bought a couple TLR's and it all went downhill (uphill?) from there.
ouch! promise, no climbing whilst wheelchair-bound. the bulldozer shot is very cool.