This might help from the Technical Info here.
http://www.1948plymouth.info/28Q29U/index.php?topic=440.0
"Headlight Switch Wiring Schematic"
- Rich

Happy Holidays Everyone !! Great Health To You And Yours!!

Can't help with any modern replacement clutch discs or throw out bearings. Will continue to try. At swap meets, with the list of interchangeable clutch disc supplied, may find a disc with one of the other cars listed.

Wont let me list the last two charts. Says file is to large. Will try later.

Cont. attachments for clutch discs.

iN Information from Hollander interchange manual OF 1935. First three attachments are for clutch disc and plates. (see message two) The next three attachments are for clutch discs. Next message for clutch discs. The other two attachments cover of manual and date. hope this helps. Might have to make three messages to display it all.

Is the 30U the same as a 29U? Have you found one yet? - Rich

Your drive made our day too. Mine is still waiting on paint. Next spring maybe. Nice automobile!

Good news, thanks Tom and Frank for the replies. Will look up a local key smith. The long time tried and true that I used went out of business. Time to find another with vintage ignition key experience and knows what an IM key number is. . 

Has anyone had any experience getting an ignition key made by the key code on the side of the key cylinder. They use a BRASCO/ BRIGGS AND STRATTON key blank. Any details will be appreciated. Thank you - Rich

This might be a possibility for a rear window seal I found on EBay. 1/8" Rubber Edge Trim HR70J SOLD BY THE FOOT in Black U Channel EPDM Search item #223331810775. There is a lot of versions to look at.  Rich

FYI - Your post is interesting. The answer is out there, members on the fourm will answer Im sure. Here is the hood on my 29 Ply Coupe. Rich

A follow up to this thread, the headlight bucket wire harness connectors arrived and now I have a few extra sets if any forum members need them. For two connectors my cost with shipping $20.00. PM address if interested. - Rich

CHET - If they are the right ones ,it looks as there is one extra so will let you know when they arrive. Rich

I think I may have found some connector retainers we have been discussing. Just found and ordered them today. Won't know for sure until they get here but they look like they will work. If so there will be a few spares if anyone is in need. (at cost only plus a little shipping to members on this forum) see photo. - Rich