Hi Brendan,

couple of options for the '51 pickup:
Fender original replacement, the Squier classic vibes replacement, and 3 flavors of Seymour Duncan's: SCP1-B, SCPB-2 and SCPB-3-quarterpound. There are others most likely out there, but beyond my budget. These were the only I could find for a small budget.

I ordered the Squier, can replace it later, but I think the position will be way more influencing the sound than exact type so first experiment with that.

For the electronics I'll go for a pretty standard and affordable Artec SE-2A.