Welcome from CO! There are a bunch of nice helpful people here, so feel free to ask any questions. It is always good to start with a direction, how do you want your car to look and will it be street only/street-strip/auto-x?
Resto-mod means different things to different people. Are you swapping to a Gen 3 HEMI? Only modifying brakes and suspension? Electronic gauges? Interior? Here is a section on resto-mods:
http://www.cuda-challenger.com/cc/index.php?board=54.0For tires/wheels, there are endless combinations. What size wheel are you looking at? Rallye, Cragar, or more modern? White letter tires or wider track? Here is a thread on tire/wheel combos:
http://www.cuda-challenger.com/cc/index.php?topic=19470.0My personal preference on suspension is Hotchkis. If you want to switch out the K-member you can look at RMS, Magnum Force or QA1.