Opportunity for 50k loan but need 680 credit

[Miltiana Holdip]

I got an opportunity for (approx) a 50k personal loan from someone, their underwriters want to see a 680 FICO score and they will disregard income. I'm still building my credit at the moment so my score definitely isn't there. But getting this 50k would ultimately be a game-changer for me as a Newbie REI, I've tried reaching out to others to co-sign for me and everyone's credit seems to be in a not so "good place" at the moment. Should I just let this opportunity go and continue to fix my credit and try again another time...or am I just not seeing the other side of the rainbow