jbl crossover and amp for solobaric

OK folks, here are my little dilemmas. I have a pair of JBL GTO505C components, but I only have one of the two cross-overs. I tried to get a hold of JBL and get some info about getting a new cross-over, but they want $65 for a new one. I don't think so. I have the values of the capacitors, i just need the values of the two inductors so that I can make new crossovers for probably around $10-20 bucks instead. My second question is, since you all have a good knowledge of what works together, what do you recommend to power a single 12" solobaric L7 dual 2 ohm. the reason i bought the dual two is because right now I just have a kicker KX400.2 to run it, so i needed a sub that I can run at 4 ohms. I would like a decent 1 ohm stable amp that wont break the bank. your opinions would be greatly appreciated.