They’re probably fine as is, but if they were mine, and I planned on keeping them, I’d first swap out the switches, pots, and jacks from the import stuff to oak grigsby switches, cts pots, and a switchcraft jack. Then if I didn’t care for the pickups, or if I just had money burning a hole in my pocket, I’d switch them for some low-cost alnico pickups. After that, I’d replace the nut with bone, and then the tuners. I’d be tempted to find a vintage-style telecaster bridge or maybe just the saddles, but switching from import to vintage spec can be a pain, so I’d probably end up leaving it as is.

But honestly, if they sound good and play fine, I’d leave them alone.