Hi,
You got the combinations correctly listed for each option.
Most push/pull pots are double throw double pole (DPDT) and have 6 contacts. This will allow you to split both humbuckers but with only one push/pull pot you can only split both of them simultaneously, or one of them. If you want to be able to split both of the humbuckers individually you will need two push/pull pots.
Is it worth it? Unfortunately only you can answer that. I would ask myself the following questions:
- Which tones are most important for me in the sense of a must-have (e.g. full humbucker in the bridge, clean tone in the neck etc. pp.) that I want to achieve with this guitar?
- Which tones would be nice to have (i.e. not if the must-haves are compromised)?
- Will I play this guitar on stage? On stage, simplicity is a big plus which allows you to focus on the performance rather than the equipment.
- Will I play this guitar in the studio? Here, the option to have many sounds can be key, especially if you only bring one guitar, and the ability to switch quickly may not be an absolute requirement.
If you go with the Miracle Man set that has been recommended, splitting the pickups makes sense for cleaner tones because both pickups are quite powerful. The bridge pickup works well split - cannot comment on the neck pickup since I never played one. For vintage style humbuckers I would forget any split options unless it's a HSS or HSH set up but that is just me.
Cheers Stephan