Hi Phylene, I'm sorry to hear about your loss.
If you could let us know the area you live in, we may be able to arrange having someone from our group to give you an informal appraisal of it. I don't know if you realize it but reel to reel is a pretty rare interest now days but you'd never know it from hanging around here. Otari's are pretty popular but unfortunately, there are so many of them out there that they don't command the kind of money they really deserve. These things are very heavy and so shipping them is a nightmare. I'd suggest Craig's list as a likely starting place.
A few relevant questions if I may,..
There were quite a few models of the 5050 but there should be a sticker or plate on the back that'll give the serial number and exact model.
Was the machine in current use or has it been in storage for a while?
BTW If you feel weird about posting the city you live in, you're welcome to email or PM me. You can find my info under ironbut on the members list you'll find by clicking the Members button above.