So who did you listen to that told you to buy this?
My thoughts are that after determining your energy needs, one should buy enough battery(s) to provide that energy, then enough panels to replace that energy, AND THEN buy an SCC that works with panels and batteries.
But, we’ve seen this before and have gotten thru it.
You’ve forced your battery solution to be 48v so that means 4x 12v batteries. This alone more than likely will provide sufficient power for your refrigerator with even modest battery size (100ah-ish or more).
OP, do you have a battery type preference? Lithium or lead acid? The former is more cost up front but will eventually be cheaper in the long haul (5 years+). If you want recommendations, please ask.
Can you locate any big cheap panels in your area on craigslist?
Hopefully we can get this rolling with just a little more info than we have now.