Hello to all a newbie from germany needs help

Hello to all, a Mopar newbie from Germany needs help
First of all I would like to introduce myself.
My name is Joerg and I live in the north of Germany.
I have until now restored an Olds 1972 Cultalss 455 and finished it now. My next project will be my first Mopar, a 1968 Formular S Barrracuda. And now I need help from someone because the previous owner has cut out the upper front shock towers (see pictures) what is the best way to weld them back in. As you can see i ordanized from a sampe model the missing peaces but of course the don't fit 100%.
Where I can get messurements from to weld them in the correct position ?

Best Regards Jörg

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