Integrating Crypto payments in my Website of subscriptions

I wanna accept crypto currencies in my sale website. My digital product is of subscription.

My website was created in WordPress. I think that makes it easier, because there are many ready plugins for it. I want a simply integration, can be a simply plugin, nothing complicated, only just offer a button of payment in the website and a checkout with Fiat/Crypto.

I wanna know if there are any way for customers paying in Fiat money because is more knowed for the major piece of people, and I receive athrough crypto. I wanna know if it’s possible too.
I wanna receive in DAI crypto, because is a StableCoin.

Let me know how much do you would make that job.

PS:. Please budget under $80.