Have you shopped for lowers lately?
Check out joebobs list:
http://www.joeboboutfitters.com/Lower_Receivers_s/3020.htm
Other than polymer, nearly all are out of stock. For under $150, the LAR Grizzly lower is the ONLY one in stock.
Rainier lists only 2 in stock for under $150, the LRB and Rainier lowers.
http://www.rainierarms.com/?page=shop/browse&category=ar15/m16_receivers-lowers&keyword=&pagenumber=2
AIM Surplus lists one, R-Guns
http://www.aimsurplus.com/catalog.aspx?groupid=577&name=Lower+Receivers
I'm not a fan boy, I don't own anything Loki, but in their defense, they are a small, upstart company trying to get the raw parts in a market where demand has outstripped supply.
If the wait is so terrible, I'd be glad to reimburse you your money and take your place in line.