I know I might be ruining someone's day by posting this, but....

The 1878-P VAM-83 "Low 8" Long Nock variant is not a particularly uncommon example of the B1 Reverse varieties. I see two or three on
ebay at all times, and they could be considered almost "common" in low MS grades. It's probably the easiest of the Long Nock varieties to add to your collection, and as a result there's little competition to bid against you.
Unless, of course, it's in a PCGS MS66 slab.
Heritage Auction Galleries has a Signature Auction every year at the Long Beach Coin Show. One of the coins in the offering for this year is an unattributed VAM-83 in PCGS MS66, two grades higher than any known example of this
VAM, and equal to the highest outright grade assigned to any 7-tailfeather 1878. It's one heck of a coin, deserving of the grade. As a
VAM groupie, I'm going to be quite interested in seeing what this coin hammers at - one would normally expect it to go around $5,000. It will be an absolute steal if it does not fetch a sizable premium, because as far as I know it's the absolute finest B1 Reverse Morgan in existence.