71 4door dart full suspension help

It is a daily driver. will never see strip. Will see freeway and passing. will see spirited drives down back roads and some "check this out" with buddies. I drive it to and from work daily about 30 miles.

have the 5 on 4 bolt pattern and new 17' wheels mounted so no break swaps in the near future (disc conversion requires 5 on 4.5 correct?)

You can do the rear jeep conversion with multi drilled rotors I believe if you have an 8 1/4 rear