Animus is only expensive if you buy crit/det IVs. You are GSM 50 so can craft Electrum accessories and SB them for 3s. Lower level ones (which bind super-fast) for Is and IIs. Go something like 33 Crit, 23 Det and either 19 acc or 19 parry. Bind the accessories whilst running Fates for the ATMA. Buy SB potions from the GC from the seals you earn from Fate farming.

Any IVs you luck on you can sell to those crazy enough to pay 300-400k per. Also, if you put 19 accuracy on it, thats 19 accuracy you don't need on a piece of armor.

Thats What I did on MNK Novus, the IVs I sold bought me a personal house XD