Hello, new to classic Dodges

Hello, I bought a 1963 valiant, the car is fairly straight, but it does need some rust repair.
this is what I'm planning on using to fix it.

1963 Plymouth Valiant Parts | MM8151 | 1960-76 Mopar A-Body Front Frame Rail Repair Cap (Rear Section); LH | Classic Industries

I'd like opinions on whether or not you would use this or something else.

I'm hoping to get it off the trailer this weekend and really tear into it to find all the things that need fixing, that way I can start making a plan so that come next summer I can cruise around in it :)

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