i was wondering what size strings would you guys recommend to get to that tuning.
and would it be better off in a 7 string or 6 string?or it doesn't really matter?

let me know thanks!!!
12-54's. im using that currently to play in b standard, however, 13-56's will be much better. which is what im goin to do in a few days. that'd be my recommendation, the 13's.
u could get a 7 string to extend your high range while in Drop A
other than that ud be good with your 6 string
just adjust your truss
DONT adjust your truss just get a heavier gauge and you should be fine unless you feel far too much string tension even then DONT adjust the rod yourself let a tech do it for 10 bucks