Hot Rods solid roof on a 30-31

I have a 30-31 pickup cab and I'd like to put a solid roof in it. Has anyone done this and what is a good donor for the roof?

 

You can try to find a 31 steel roof cab. Otherwise I'd say make a template of the roof curve and take it with you to a junkyard and try it on different cars.

 

68 Mustang on my 30.

 

I second that. 1965-70 mustang roofs are the best.

 

You may not find many junkyards containing '60's Mustangs, and even fewer that'll allow you to remove one's roof.

This^^^.
That's how I found out an '86 Toyota minivan roof (with no ribs) matched my '28 Ford Tudor *perfectly*.
You might be surprised what'll match your pickup roof, and is available for a low price.

Here's a tech thread with pics:
’28 Tudor update #6; Steel Roof Covered by Stock Vinyl | The H.A.M.B. (jalopyjournal.com)

 

I hate mentioning them but Howells has a few options on their website, smooth and ribbed. They may still need a bit of fitting but they are a lot closer than a wrecking yard roof IMO. I'd buy them off ebay from someone who has them in stock.