Mate.... sometimes for the letters its possible to use a standard font and stretch for a very close match.
This sort of font though wasnt a real font and was hand drawn, as such its not even and has faults. I had the same problem when i did the "PRODUCT OF"  for the GOTTLIEB neon signs... when i scanned it and blew it up.. it was all over the place with hand error.
Only way to get a TRUE replication of it is to draw it up im afraid... is a bit tedious though