Why don't you have your LBS order a sxtrail?
If they aren't a Specialized dealer, try ordering from Specialized direct, or look on ebay.
EDIT: I wouldn't buy a frame to match a fork, unless it was something like a 888RC2X or Fox 40 (nice is what I'm going for here), don't sacrifice your frame choice for a Manitou fork, if anything, buy the frame you want and if the Manitou doesn't feel right, sell it and buy a different fork.
If they aren't a Specialized dealer, try ordering from Specialized direct, or look on ebay.
EDIT: I wouldn't buy a frame to match a fork, unless it was something like a 888RC2X or Fox 40 (nice is what I'm going for here), don't sacrifice your frame choice for a Manitou fork, if anything, buy the frame you want and if the Manitou doesn't feel right, sell it and buy a different fork.