new car prices.

If you want a HEMI build it one piece at a time.
Buy a new block, then crank rods and pistons, keep going until you have a complete engine.
A Dana is easy, get one out of a truck and narrow it down, most had limited slips and depending on the year between 3.07 and 4.56 gears are the most common.
You will save a ton of money that way and not have to borrow a dime.