Shimano or SRAM rear derailleur? (Doesn’t matter for the front, essential for the rear.)
If you’re SRAM on the back end, Jenson still has the SRAM X.0 (top end, $250) on sale for 149.99.. X.9 are also similary discounted to under 100 bones. (90)
If Shimano, sorry, don’t have any links for you. (I’m SRAM on my sled, so haven’t done any research and have no opinion or experience, aside from my wife’s Trek which sports low-end shimano, which doesn’t suck…)
You have to add the heavily discounted items to your cart on Jenson to see the price. (Don’t have to continue, just have to take the 1st leap 😛)