Personally... I think with palavia botting some hours per day, and not Too much. It will take 2/3 months to get 10 havoc + kronos and after that is will take another 3 up to 5 months to get full hercules + full lf4 + maybe some ABG for uridium to upgrade. But after that you will also have a lot of ammo to cubi.
Keep in mind to send promerium for npc/gates/palla, also 25 % discount will make the game much easier, if you are someone who doesn't bank, just save much uridium and buy the discount package once or maybe 2 times a year