Just bought my first mopar. Looking for help!

There are so many reasons I would use that car for a big block build, but the main two for me are 26 inch core support opening for a big radiator and that it could weigh the same (or less) as a small block A/C car after lightening.
I found a 440 with 727 trans all stock and complete for 1k is that a decent price? Will need to be completely gone through