mhmm ok so your "5'10", 145 pounds" and would like something longer than 170 and with a waist of about 85mm
well theres a few options such as:
K2 Public Enemies
Rossignol Scratch FS/Scratch Sprayer BC
all are available in the approx. length that you want, so Look into those... to help you out a bit tho... since your 145 your a pretty light guy... So just because of that I think Foils or sprayer BC would be the best for what you want.. and if your looking for a deal then DEFINTLY go with the sprayer BC... it's priced VERY well, and the foil is also great all around
for the sprayer bc:
there it is for 240 in a 182 length which is pretty good, so look into that...
hope that helped...
note: if you want to look up some demensions for last years skis check out my thread: