Current set up is basically as follows:
Go-to weapons: Arrest Needle, C Vulcs, CR, HS, FS, SoF, MKB (excal > mkb all day long but i'm a scrub), Hell Laser
Armor: lt mantle (using mainly to avoid rather than clear traps) but am soon making my VA: lafuteria
Units: h/bat, v502, c/ab, and h/pow and sometimes c/freeze /shock when necessary.
Shield: ra wall until RR
Mag: A standard pow/dex with mylla & youlla is fine until you max ata and/or atp. Get a mag with invinc triggers so you can exploit zerk or something during those nanner nanner nanner can't touch me fgt falz moments.
This isn't my ideal setup but it's been working well so far!
v101 is nice but h/bat is good until you need to start thinking about maxing out. Then you can think of what stats your mag will need with all your endgame shit equipped.
v801 basically replaces v502 during boss battles if you have one collecting dust. Not critical but is a neat tool for certain situations. Might be more useful to you than me since I use ramar.
ADEPT is dank but you'll benefit only from 1 of its 3 major functions; the luck boost. ATA will max quick for you regardless. You probably don't use up all your fluids as is so the while the 25 tp reduction sounds good, you may not even notice it and especially if you're thinking of using spirit or something anyway. Only useful for techs which, again, you might make more use of than I. The other stat boosts are negligible compared to c/ab or straight heavenly units. That's just my thinking on the matter.