Here are the mintages from CoinMintages.com: (I guess they got them from DrapedBustQuarter.com) Draped Bust Quarter Mintages 1796 6,146 1804 6,738 1805 121,394 1806 206,124 1807 220,643 So if I just want one for a U.S. Type Set, it looks like 1806 or 1807 is the way to go, right?
@Yankee42 and @SchwaVB57 , I'm looking for the nicest grade I can afford at the time I buy. Right now, that's about VG8 or lower. VG8 has a current CDN of $525. I might actually go as low as AG3 as long as it looks decent.
The 1796 and 1804 are pretty tough, but the rest are generally about the same price in similar condition.
Judging strictly from PCGS populations and auction results, 1806 is by far the easiest, followed by 1805. 1807 is much tougher than the mintage would indicate, although oddly plentiful (in the context a five-digit coin prices ) in 64-65.
I'd definitely go with 1805-1807 for a type coin. You may consider looking for an 1806/5, since they're not too uncommon and aren't priced much more than a regular 1806, but the overdate is very "cool" and extremely visible. It also kind of goes without saying, but do some searching before buying one. Many of these are poorly struck, and (for example) you can find AG3 coins that range from looking like a G4 to looking like a FR2. You can also find G4 coins that look more like AG3's or G6's, etc.