New pan.....finish? Options

[1970 Neun vierzehn]

It's looking positive for a full pan replacement. After the new galvanized pieces are welded in, how should the bottom of a '70/4 be finished?

The shop is advising primer on top of pan with a resilient black finish on top of that.
The car is Canary yellow, so I don't think an all yellow finish on the bottom and wheel wheels is going to look too good. The car was delivered with the typical midwestern "rust protection" method of an application of black, semi-soft, tar-like material that in places is still intact!. You can scrape parts of it off, and find yellow paint underneath. Unlike its very early existence, this car will never see salt saturated roads again. I think some road debris, water penetration protection is warranted, but what color(if any), finish, application? Suggestions are very much welcomed.