Online FIDE Titles

Ive heard of and researched how to obtain an online fide title (acm, afm, aim, agm), and know the minimum rating requirements for all of them, but does anyone here have any idea of how a chess.com rating would compare to an online Fide rating? My rapid rating is 1575, so Im hoping for it to be somewhere around there, as an AIM title may give more validity in trying to be a chess coach, which is an interest Im pursuing. Basically, is it like lichess where all the ratings are a couple hundred points higher? Or like Otb where the scores are a couple hundred lower?

That Arena site is not even administered by FIDE. The "titles" are not accorded with much if any respect.

I know that the site is not administered by fide, but having anything (title, rating, (other than chess.com) to put a measure on how good I am would be nice for my sake of mind, to stop people from just skipping over me due to lack of information on skill. Also, for the registration fee, can you pay in dollars? Or do you have to transfer money into euros and then pay?

You can pay in dollars. Before you subscribe yourself. I should tell you that the rating in FOA works way differently than in chess.com. I'm 1700 here but I've never been 1500 on FOA. An arena candidate master would be around 1500-1700 on chess.com and an Arena Fide Master around 1700-1900s. An Arena International Master between 2000-2300 and an Arena Grandmaster +2400. There is an IM OTB that plays a lot on FOA and has a rating of 1700!! And one guy that is 2600 chess.com is an AGM with 1900 there. Almost no one reaches 2000 there... So, don't be upset if getting the title you want takes a while... The level is ridiculously high