Hand made DAC for my Chinese FX502S pro stereo amplifier

Hello dear forum members. I would like to ask your advice. I need a DAC for my Chinese FX502S pro stereo amplifier (modified by me, since the sound is terrible in stock). In connection with the limited budget and unwillingness to overpay for the finished product, I would like to do it myself, using ready-made boards from China. I will output sound from my TV via S/PDIF and from my iphone via bluetooth. I was interested in two boards. one on the AK4495 the other on the ES9038. bluetooth chip is the same - CSR8675. Tell me please, are these good DAC chips and which one is better?


And I don’t want pay more then 100$.

for example, TOPPING D50 costs more than $ 200. uses DAC ES9038Q2M
https://s.click.aliexpress.com/e/c0MGeL5g.
And on the same time is a ready printed circuit board, the cost of which is 4 times lower.
https://s.click.aliexpress.com/e/Kq4BSM6
And I immediately apologize, maybe I ask trivial questions that have already been discussed on the forum, but unfortunately I have strength to read the all forum in search of an answer, because after the Chinese amplifier and search for a solution how to tweak it to good sound I have no strength left to search for information about the dac I need.