Despite the fact it's a 70s lefty and it's been repaired and P_I-ssed about with it may be worth more than you think, so it may be worth sending Gibson an email - they made it they should blinking well tell you - keep hassling them till they do (apparently they can be a bit reluctant to respond) :) .
There are lots of sites out there for refinishing guitars, if you want to consider it
this a good un http://www.flash.net/~guitars/ReRanch101.html
I can't tell you about painting guitars (houses-yes) and you'd know why if you saw my "glitterflake-blue black metallic" Ibanez.
Check out http://www.guitarnuts.com for wiring ideas and stewmac are very helpful generally.
Best of British to you.
Accuracy,you say? hmm interesting concept..