Picture posting is enabled for all :)
I think a lot depends on how long it's likely to take you to recover from the accident. If it's a matter of weeks or months rather than anything long-term, go for it!
Maybe I am going to seem really harsh here, but unless this is likely to be very short term (say less than a month) then I think it is pretty unfair to take on a plot. Especially if there is a big waiting list. Perhaps you could negociate staying at the on the list until you are better. I.e you are offered the next plot when it comes up and, if you are better you can take it. If not, it is offered to the person below but you stay on the top of the list.
With a waiting list of 2 years, how come you have plots in such neglected condition?