If I make you a suggestion, would you post some soundclips when you finish the project?
Don't put it near the bridge, it will sound extra-plonky.
I'd put it right in the middle between bridge and neck pickup, so it can double as a thumbrest and have a nice, midrangey sound that cuts thru.
edit: if you play with a pick, the position I suggest may not work for you, if you pick at that area the pickup would be in the way.
edit no2: hmmmm, you said "my T-bird pickups are here" so you've got TWO pickups? Why not put them both?