Thanks for the comments. Here's some answers to the questions:
I used an Ibanez artist (les paul clone) and yes it is 24.75" scale! Bass pickups coming soon.
All the humbuckers come with shielded 4 conductor wire.
The pole pieces can be screws or studs.
A range of single coils are coming soon, after that a range of standard bass pickups. I'm hoping to sell 7 and 8 string guitar pickups soon too.
I could make 7, 8 or 9 string bass pickups is you let me know the dimensions, sound, etc. you are after. Email me for details.
Thanks,
Jon