I don't know how many more this guy has but I got one for my GA16DE on ebay from him and I like it a lot. Install was a snap everything included, it's all ceramic coated.. he charged me $17 for shipping this puppy.
He's got a few left for SE-Rs:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4507916990
He's got a few left for SE-Rs:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4507916990