For reloading you will need a press, dies (for each caliber), powder measure, scale, a way
to prime if your press isn't capable, a trimmer, shell holder (caliber branch specific)gun powder, bullets, cases, a reloading manual(s) (most important),
chamfer/deburrer tool, primer pocket cleaner, and a few other not critical but nice to have parts etc.
If you're waiting on your stamp to come back you have plenty of time to read up on reloading, watch some videos and gather equipment.
I am a fan of RCBS equipment ut they are not the only game in town, several other great OEM's for reloading equipment like Dillon, Lee and
several others. I tend to stick with one brand to ensure equipment compatibility.
http://www.rcbs.com