Just my personal opinion, but building any Chevy is way cheaper these days than most any Mopar. Have you priced parts??? You could build 3 sbc's for the price of one sbm. Just in availability, Chevys outnumber the Mopars several times over.
I've had my Cuda for over 21 years. There's probably $40K in it (I won't add up my receipts) ... and it still isn't 'done.'
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Good luck with your decision! Hope she loves it regardless of what you both decide.