problem with a used sl1 1998

[geofreesun]

hi guys i just got a nice sl1 1998 serial # U0 55 47

so i have some problem, hope some pros can help~

1. some frets (12, 13) were quite worn, but refretting seems expensive. quite noisy on a few notes if action is low.
2. currently with 10-46 gauge. i wanna adjust the truss but the screw seems to be messed up, like the allen wrench won't get a grip in the slot.

anything i could do without damaging the guitar?

3. about pickups:
the neck is a carvin single coil. i wanna get a sustaniac, like the one in dk2s. but is there a way i can set up the mini-switches without drilling holes on the body? like put them in the wiring area....

otherwise, any recommendations on for the 2 single coils? i wanna keep the tb4 for now.

[Cygnus X1]

Are you using a metric allen wrench? I know, dumb question, but had to ask.

Individual fret replacement is an option, get the neck correct, first, though.

And, I'm no pro, just very careful...

[Nazgul]

like put them in the wiring area....

Sure, why not. Not the most handy place though .