Trying this burn in filler stick for the fret slot ends. It is a bit awkward but seems to be working ok.
You can see the 2 filled slots behind the mini torch.
The stick color is Dark Red Mahogany and while not exact, blends pretty well.
Mostly done; I have not glued in the nut and wont oil the fretboard until I have patched the chunks out of the fretboard edge.
The finish on this is very thin and dings easily, it is also hazed.
I think it was never finished. I probably will rub it down to get the haze off and maybe spring for cherry red dye. Then, a couple of thin coats of wipe on satin poly.
It plays very well and sounds great - finally found the P90 guitar I have been after for several years.
Sorry the pics are kind of dark.
Many thanks to @SG John !!
He sent me some magic unicorn dust to fill the chips in the edge of my fretboard.
1 didnt come out great but it is filled and smooth.
4 is better.
Ive put a few together they turned out well enough strated a thrid and decided I didnt hjave the time or patience to complete the task -- its in @Hackmaster Little Shop of Horror's as we speak ....I am certain it will be OVER THE TOP from anything I could have cobbled together ........ and the SOLDERING will be much much better!!!! lol