expert help needed (my first post)
To the OP, from reading the posts in this threat I hope you will have learned some things. (1) Mopars are expensive to build in comparison to other makes. They are not as cheap as slapping together a 454 & dropping it in a Chevy - in fact, most Mopar guys will admit they are into their cars for more than they would ever hope to recoup; but Mopar people tend to hold on to their cars so the investment, for them, is worthwhile. Your flip will only be worth what someone else is willing to pay. (2) No one is saying you can't do what you want to with your car, it is your car, but they are letting you know not to get lured into the Barrett-Jackson syndrome in thinking more people would want a 440/4-spd over, say, a lighter high revving 408 stroker small block. For example, if I were going for a big block in an A-body, I'd prefer a 470 (stroked 400) to keep a little bit of weight off of the nose and gain 30 more cubes to boot. (3) Most of the old guard here have eons of experience and have tried to give you the benefit of that knowledge. Some Mopar folks have done what you envision but not without gnashing of teeth, foul language, and 'hard knocks' - both educationally and financially.
The best advice I can give you is to learn how to do a search of the Forums - that research will answer a majority of your questions and give you an idea of what you're up against.
Please keep us updated on how your build is going.