You are good with graphics... make exact digital copies of the decals and have some small silk-screens made. Re-coat the chassis and apply new decals using the silk-screen.
I actually owned a full function advertising design studio for 12 years or so. I got so gatvol of waiting for printers, typesetters etc that I bought all my own equipment - mostly for litho. I in fact still have a darkroom and light table here where I am typing but my process camera was given away for free to Hofmeyr & Mills, auctioneers. Bought brand new and got nothing for it as it was 'no longer used in the printing/repro trade'. Unfortunately, I got out just before comnputers were introduced in that kind of biz.
So, anyway, ffwd a couple of years. I wanted to silkscreen logos on needles so I made firstclass art (pos on clear film), just black with no halftones. I get p#ssed all over again as I write this. I went to a firm somewhere in Observatory and got buggered-around for many weeks as the assh0les couldn't or didn't want to understand that I wanted to silkscreen myself.
I made an alu frame for the screen, as well as a jig to hold 10 carts at a time. After 6 weeks waiting and badgering, I heard they 'lost' my screen frame and jig. Eventually after many more weeks, I took the job to Rodney who had a much better and much more classy solution - hey Rodney

With the Leak, things are going to be a bit more complicated. The Leak logo is available anywhere in many places and the rest is just leters and digits as this type for the valves.
mafioso