I really wish I could help you with some ideas- but with inability to work out/exercise- I really can't figure out a way to lose extra skin/etc without doing it surgically. I did not have to lose as much as you nor have I even gotten to my goal weight yet- but already I am seeing "lumpiness" on my innerthighs and let's not even TALK about the hanging skin on my stomach (it was mega-stretched out from really huge pregnancies with polyhydramnios- too much fluids with my pregnancies that made me look and measure like someone full term with triplets- no lie.... that's exactly what my dr said as I measured 52 inches around at 27wks with my last child- and I'm only 5'2! I was practically as big around as I was tall! LOL) But anyway.... I have started to try to exercise lately with Walking Away the Pounds but I don't see how you could do that with the feet issue.

I used to have bad knees but they don't hurt as much now that I have lost weight (or else something else happened coincidentally at the same time I lost the weight LOL) but they sometimes ache a bit after the 2 or 3 mile tape.
Pilates are HARD. I'm going to wait a bit before doing them again. They made me hurt so much that first night doing the EASIEST ONE (pilates for dummies. I'm not making that up! That's the actual name of the tape LOL) that I hurt for days and ended up not exercising at ALL for quite some time afterwards.

So that will be for the future if I ever get in good enough shape for that. LOL
(but it is all things on the floor and not on your feet at all- so it might be good for you?)
I hope you figure something out. Because losing that much weight is AWESOME... a truly awesome feat you have accomplished and you deserve to have the body you desire- or atleast close to it- after doing that! It's not fair to have hanging skin and lumpiness/etc after doing that.

I understand why it happens though- I just hope mine doesn't continue to get worse where I end up having to pay a fortune to fix it once I lose all the weight! I'm beginning to think my tummy is hopeless though. I'm losing inches there like crazy- but it hangs lower and lower also. I have had 2- sections and a hysterectomy though- so I'm sure that doesn't help at all with the muscles issue there.

It will be hard to tone up all that loose skin on my tummy I bet.
Oh and btw- reading your post about what you did to lose the weight- I have to say that sounds a LOT like Atkins, even if you didn't know it. LOL If you took out the potato (atleast until in maintenance phase of Atkins) it is exactly Atkins. Cut out sugar, flour, eating meat/fish/chicken & veggies (but potatoes are a no-no for quite some time on Atkins LOL).

Pretty cool! Congratulations on your weightloss!