Hey guys, Got my eye on a used vintage 4001, only the guy had it modded with an EB-0 in the neck position and a DiMarzio Humbucker "Jazz" at the bridge. He said he had it professionally done but in the photo's the Jazz looks too wide for the strings to me. Otherwise the bass appears to be in A-1 shape. Normally I wouldn't consider it, but he's letting it go for a grand. Any luthier / electronics guru types out there who could give me the skinny on if this is a feasible mod, whether it can be reversed or not, and if so how much it would effect the basses original sound afterward, would be much appreciated. Thanks in advance.