What transmission will work in my 88 SEC?

Well its official, after 3 months of ownership, the trans on my 105K 88 SEC is now toast. Nice start to many fun years of ownership I bet. I still like the car strangely enough. (It did get me laid a few times and that is what a benz is all about right?) NEways, if I half ass it and throw a used one in there what will work in the car besides anything from a 560 sec or sel? Thanks