Help please with cab info

[Reese1971]

Have a 70 CST loaded with options that really deserves to be done proper.The problem im running into is the cab has some rust in drivers side roof on inside of truck and a little rust on roof drip rails .This dont seem to be a problem for me because i have seen the repair panels for sale for inner roof and outer roof skin but what has me stuck is the area below the drip rail on driver side the top door jam area were the top of the door mates with the cab is rusted and all the pictures i have looked at of the roof skin repair panel looks like it only comes with the roof top skin and drip rails and nothing below the drip rails i need input on fixing this area of cab