Greetings... I've been looking at a couple of the PB DIY bass kits (specifically the RD-4 bass) and I'm wondering if anyone has built/set them up to be tuned BEAD vs standard tuning.

I plan on using the lowest 4 strings of a 5 string set, so I'm wondering what sort of modifications would need to happen to make sure the bass is set up correctly.

My assumptions so far are:
- Nut would need to filed down to accommodate the larger gauge strings

Unknown / potential modifications or tweaks:
- Bridge saddles and/or machine heads filed down to accommodate the larger gauge strings?
- Truss rod adjustments to account for tension?
- ??

Any thoughts?

Thanks!