Nothing stopping you from buying a jump starter and charging the battery. It might take a while, but it's probably not that dead. i took one of these and just clamped it to the battery: http://smile.amazon.com/Jump-N-Carry-JNC300XL-Ultraportable-Starter-Light/dp/B000XQ9MGE/

fyi i think you are fine jumping from the pig tails. i've done it before. but i don't have your bike. they only use that high current for a couple of seconds. and there's probably a fuse in there anyway.