Jake,
Great project you have with your dad. My 1957
Chevy 1/2 3100 has been owned by my family since it was new. My dad got the truck June 28, 1957. When he passed away in 2007 he gave the truck to me (he drove it up until 2006).
I started the frame off restoration in March 2009. I plan on returning the truck back to 100% stock with all the original parts and same paint codes. Looks like your 3800 is the same color "Brewster Green" as mine.
I remember sitting on my fathers lap when I was 6 steering the big green monster!
My wife and I live up in San Francisco and she is from Salinas. We go down there all the time.
The restoration is bitter sweet. It is amazing to watch the progress of the job but sad that my dad can't see it and be a part of it.
Good luck and keep us informed on how things go. You will find alot of support in here as I have.
Jon S.