I decided to go with HD560S + ModMic Umi. There are A LOT of positive comments about it for FPS.
For the DAC/AMP, I found Fiio K5 Pro (used) for 50USD, which sounds very tempting.
What do you think I should choose between Schiit stack/hel(280 USD) ,ifi(200 USD), Fiio K5 Pro(60 USD) and AE-5 Plus(136$)?