For solid body Cabronitas, assuming that the body has been routed to accepted the TV Classics, the Universal Mount pickups will screw straight into the body using the supplied screws and rubbers. If you are building a thinline Cabronita, assuming that there is some type of centre block, again, the Universal Mount pickups will also screw straight into the body using the supplied screws and rubbers.
Ref pots, for humbuckers (Classics) you’d want 500k as a rule. TV Jones recommend 0.22pf caps as standard, however there are lots of variations, especially with Cabronitas as some use S1 switching with a push pull volume pot switching tone. Its also worth researching the Greasebucket mod as that is popular.
TV Jones have some schematics here:
We would recommend using decent components such as CTS & switchcraft. We normally keep some standard CTS 500k pots, Switchcraft jacks and 0.022pf caps in stock.
If converting a regular single coil Tele, TV Jones supply a replacement bridge to fit the Classic size pickups. We can supply these with a 3-4 week lead time. https://store.tvjones.com/tele-bridge-plates-c24.aspx