Very tidy work.

What type of cover are you fitting over the cavity? Recessed or surface mounting? The toggle switch looks to be close to the surface, so if you then add a 3mm rebate for a cover, just wondering
if they might clash.

Also, whilst you'll easily fit small ceramic disk capacitors in that space, chunky orange drops could be harder to fit in. The higher voltage rating the capacitor is, the bigger the cap body is. Any capacitor voltage rating is fine for guitar use, so if you have a choice, select he smallest voltage rating you can.

And have you given thought to where the pickup lead hole will go to avoid hitting a pot or switch? The lead on 4-wire pickups is relatively thick and you need to get two of them into the cavity. Even braided single-wire leads are quite thick. The minimal cut-out approach looks nice, but you need to account for where everything goes, and I fear you may have overlooked the location of these leads.