I found a 2004 1M 600EFI 144x2 with 2400mi on it. Looks in good shape, from what I can tell normal where. What do you think it is worth? I just moved to the U.P. of Michigan so looking for a long track. This will be my second sled. Choosing between an 2005 M5 or the 2004 1M 600EFI fairly close in price. I am 6ft 1in and weigh about 185lbs. Just concerned that the M5 is a little too small for me (but it is new). Any input would be greatly appreciated.