Thanks so much, David. I just assumed that all Telecaster bridges had 4 mounting holes. That's why it confused me.

Looks like my kit won't arrive until next week. You mentioned that different Telecaster bridges have different dimensions. Do you think the Wilkinson 3 saddle bridge will cover these holes? If not, what should I do about it?

I've already got a can of Goof-off and everything else I expect to need for the build. However I've held off buying a Dremel. I'm hoping the pickup routing won't need to be modified. FYI I'll be putting Tonerider pickups in both slots.