Savage Stevens 620

I have a Savage Stevens 620 in 20 gauge format and it really needs a good cleaning inside the reciever, some bluing touch ups, and the stock refinished. I was wonderign if anyone out there can tell me where to find some sort of manual or instructions on how to disassemble and then reassemble the gun. I have most of it apart already on my own but getting the buttstock off and the trigger assembly off the reciever is proving difficult. If I had to go off a exploded view I could get one from Numrich but after fighting my old A-5 on reassembly I would prefer to have instructions.