Ok heres a monkey wrench for you guys;
My LV6548's have 2 inputs each, making 4 inputs total. 3 inputs are being used, and my 4th is still available. Here are my options based on acceptable VOC and max Current:
12x 250w SanTan panels, in a 6S2P fashion. Last time they sold me Snail trail panels at $33.75/ea, but if you wanna figure in full price its $400-600.
15x 240w Sunpower panels in a 5S3P fashion (which i already have 12 in a 3s4p on my roof and they are fantastic.) I can get For $1275 + shipping. These panels perform better in every way. Power comes on sooner, stays on later in the day, does better with clouds/shading, and output more wattage than the SanTan 250w panel (even though they are rated at 10w less), and weigh 11lbs less per panel (which is surprisingly turning into a bigger deal to me than I thought lol).