SWR workingmans 15 bass combo amp?

I am looking to buy that amp off ebay but the seller says it blows fuses. He says it had been a well working amp but now when he turns it on it humms and blows a fuse there are two fuses in suspect but he states it is mainly a single one. he has replaced them i dont know the details of that though.

((((((http://cgi.ebay.com/SWR-WORKINGMANS-15-combo-bass-amp_W0QQitemZ7413995097QQcategoryZ121158QQssPageNameZWDVWQQrdZ1QQcmdZViewItem))))))

or just look for swr combos in a search. i am planning to buy so i will appreciate any ideas even if they are a long time from now. is it worth it? can i do it? will i ever stop typeing? thanks...