... It been prove soo many time that Relic+ DL can get you to T1-4 just fine. there not really an order of which gear to get first anymore (especially now that the myth cap ries to 450...) Just do coil and CT then buy whichever piece you missing.
Just make sure that you ACC is around 470 w/o food. Just becareful when you replacing Glove and pant combo these 2 have a ton of ACC tie to them.