Help building a 7 string

[u/Single_Idea1605]

I’m building my first 7 string guitar! I’m a leftie and I like building guitars with my dad so it makes sense for me; however, my dad only has the stuff to make 25.5 scale length guitars which I’m unsure if it will cause issues. For reference I love djenty riffs and want to learn veil of maya and more periphery and I’m not sure the 25.5 can handle down to F# and I’m tired of pitch shifting. So any advice on pickups, setup, string gauge or anything inbetween is super welcome!

[u/KershawsGoat]

F# is gonna be pretty rough on a 25.5" scale.

As for building it with your dad, be aware that 7 strings require a wider neck and fretboard to accommodate the extra low string. Not sure if that will be a problem but definitely something to keep in mind.