I did it myself just used a air powered dinafile and dremill tool. just remove a little at a time. Check fit do little more check fit. just remember its easy to take off and almost impossable to put back on.
I've done a couple with a drill press and a machinists vice. You can google AK receiver template and print it out. The template will give you the correct dimensions for the magwell. Don't forget to add your 922 parts so it's legal when you're done. If you live near me I'd be happy to help.
The WASR is imported with a single stack opening due to stupid importation laws. Century Arms, the importer, mills them to fit double stack mags and adds the compliance parts.
thanks guys i wouldn't mind having a little help or even someone doing it for me. i don't think i would do well myself. and don't really have any machining equipment. im in new palestine east of indy. if any one is close around indy let me know. thanks again for your input.