I DIDN'T do this, but if I'd have read this forum first I may have: Whatever is in your swap sheet.
I bought a RCBS Rockchucker kit, and fortunately, I like reloading, but it would have been way smarter to check the swapsheet and buy a used single stage press and maybe get some kit with it. Then after I'd done a few thousand rounds and decided I liked it; and decided what I didn't like, I could objectively replace the parts that may not suit me that well (or just decide its not for me for whatever reason).
I recently bought some gear out of our swapsheet and I bet I only paid 50 cents on the dollar for it.