Thanks Dave. This is the first one I built... no photoshop. Here are two more I just finished up:
So far I've tried cheap ($15-20 each) tele-style pickups from random ebay sellers, some gold foils in the tele size (too thin -not enough warmth or middle for me), and SD Quarter Pound and Hot Tele's. I like the idea of sticking to one format/size so I don't have to make a bunch of different router templates, and then players can drop in different pickups if they want. And, the tele pu shape suits the shape of the body... I don't think I could stomach installing rectangular pickups in there. Hopefully, I'll be able to narrow my choices down to 2-3 different options that could come stock with the guitar... but, yeah... I've gone down many late-night online rabbit holes reading reviews, comparing spec sheets, listening to sound clips, etc.
I agree with the toggle switch on that first one...it's not ideal. I went with a larger Switchcraft switch on the white one. The bridge is an ABM 3021. It's fine, but I'd like to design my own when I get the time. I'd really prefer a fender-height bridge (it's hard for these tele-style pickups to reach high enough with a LP height bridge the way I have them mounted in the body), but I like the simplicity of a wraparound bridge and I much prefer a solid bar of aluminum over stamped steel.
I should probably make a tester guitar with a means of quickly swapping pickups just for comparison. For now, I'll build a couple more to work out the kinks before we offer any for sale. I hope this won't break any anti-self-promotion rule (happy to edit if it does) but, if you're curious, you can follow the project on Instagram: @bethguitars.
Thanks again to everybody that responded with info -you've given me lots to think about and do further research on!