Transmission Rebuild Needed in Phoenix, Arizona For Sale

I have a xxxx Mercury Sable, The transmission was slipping a little between 2nd & 3rd gears. I let a friend use it a couple nights ago he ragged on it now it won't shift and can't get it over 20 MPH so i parked it. I use the car mostly to get to Physical Therapy for my right knee that was totally replaced on 2/25/13 for a second time and other appointments at the VA, And to go to the store and helping other veterans in my complex to do the same that do not have cars of their own. I live in a complex for US Veterans only in the 33rd Ave and Grand Ave area of Phoenix.
Now my Problem i am a Disabled Army Veteran and until my Disability payments are approved through the VA, I have very limited funds month to month through Social Security After i pay my other bills. I am not really looking for someone to rebuild my Transmission for free but a really good deal and the understanding that i would have to make payments would be great, I can give any help with the rebuild that is needed just do not have the equipment to do it myself and have never pulled a Front wheel drive Transmission before
.
I do have part of my Nascar Die Cast collection here (rest in Michigan in storage) and my Mountain Bike that i could give you to hold until i have paid off the rebuild or more then willing to sign a repayment statement or whatever is required.
Thank You a head of time for any help that can be given.
Jim
jimw65@yahoo.com or 602 446 xxxx anytime