Hiya CJ, there are no stupid questions here.

The electrics are serviceable, and for the price reasonably good kit. If you want Seymour Duncan/DiMarzio/EMG/Bareknuckle tones then they might disappoint, upgrade to your PUP brand/style of choice.

Upgrading the tuners is always a good plan, the basic kit ones are...well..Basic. they do the job but not much more than the job and depending on the factory's frame of mind on the day, they might be fine or they might not. A set of Grovers with your kit order will not go wrong at less than $50 a set. The bridge on my EXA-1 is OK for a kit guitar if somewhat rattly and a bit clunky, but it intonates and keeps the strings in place, again, if you want better than OK, and you have the cash to upgrade it then go for it.
**Note, when I say hardware upgrade I'm not talking about the tick box upgrade on the EXA page, I mean the Babicz FCH hardware upgrade at $249.00 to $315 a pop https://www.pitbullguitars.com/shop/...bridge-chrome/

BUT, also consider:

With just the Grover tuners and the Babicz FCH Tune-omatic bridge in chrome, then you've already doubled the kit cost, before you even start talking about upgrading pickups.
There are also options from specialist luthier supplies companies that might bring that down a bit, but you'll need to check out that things like anchor sizes etc are the same.

My advice to all first time kit builders, is run with the kit gear for the build. Get everything dialled in right with fit form and function first as you progress the build. Get used to it is, as a kit guitar first, then when you're used to it figure out what upgrades you might like to make and whether you think they will make that big a difference to it.

This is all just my opinion, if it's EMG/Grover/Babicz your heart is set on then fire away! it is Your guitar build after all.

Oh, and start a build diary, post many pics, ask many many questions, even the ones you think are stupid. Many of us have done much stupid already, and we can provide tips on how to avoid making our stupid, your stupid!