G50 engine wire harness

[Tonysmobile]

I'm working on a customers rv that's on a 1985 chevy g50 frame. It has the carborated 350 5.7l. I am looking for the complete engine wire harness that comes with the bulkhead firewall junction block. I have searched everywhere and I can't find one. Any suggestions?

 

[bucket]

A G50? Is this a van chassis?

I thought that after the G30, the P30 chassis was the next largest.

If it's the G30 van chassis, a comparable mid 80's van should be a good donor.