NS also makes the 'mini' kit, which I think is a better representation of the sound you (and I) want, but it can get a little old if used repeatedly.
I have this
http://www.soundsonline.com/sophtml/details.phtml?sku=TASCDR-62, which is mostly loops, but it has all the individual hits at the end. I think its pretty sharp, but its audio only, so you'll have to have a hardware sampler or a basic PC wave editor (goldwave should do)
There are also several 'motown' and early funk style discs that might do the trick, and though they're loop based, you'll be able to extract hits. Some of the funk discs might sound too dry for vintage rock and roll.
They unfortunate part about trying to program 60s-style drums is that the room they were recorded in was the number one influence on the sound. So, even if you've got great samples, you'll still be after the perfect delay/reverb/room sound
If you were to sample old recordings (loops or hits) the repetitive-nature of the sound will end up sounding like (way) old-school hip hop loops, which is still better than the monster drums found on DFH.
Let me know what else you've found. It's been my quest for years.
Cheers
Chris