The "classic" you're probably talking about is the "horseshoe" from the original 4001 basses. These come in basically 3 flavors - original with magnetized cover, re-issue used on 4001V63 and 4001CS which are super hot, and a slightly tamed re-issue used on the 4001C64 and C64S basses. Around '69 the magnetized cover was gone, replaced by a chrome plated piece of metal, and soon plastic. This is your standard "high gain". At some point, I believe in the late 80s/early 90s, they boosted the output of the high gains quite a bit, as well as getting rid of a bass cut capacitor that had been used on the bridge pickup. And in 2006 they started using adjustable height pole pieces.
The toaster is a neck pickup, which also comes in about 3 flavors.
HB1 is used on the 4004 series and is a humbucker. Great sounding and quiet, with high output. Totally different animal than the classic Ric pickup.
If you want the signature "clank", any stock 70s Ric should do the trick.