Wait to build credit or try to buy a investment property now

[Dylan Lersch]

Im a new investor and I've been running some calculations with the BP calculator and I think I have found some good deals but I do not have the best credit right now (middle 600s) and I do not have the proper funds id be comfortable with, with buying a investment property to try and BRRRR or just upgrade a few items. Should I try to save more money and improve my credit for a better rate or try to get creative financing for my possible investment. Thank you in advance. ( Also I'm in the middle of BRRR book so I'm feeling motivated )