It's been almost 2 months that I have been running the Franken UPS trough everything that our power utility could trough at me (or the lack thereof depending on your view). Still waiting on some proper battery fuses to come from eBay but I'm considering this one done. If anyone wants the schematic for connecting something like this for automatic fail over I will be happy to spend the time on Eagle but until then it should be really easy to wire up using a rely/contractor.