Visit the Team Iceshanty Proshop
I know the striker ice suit has an adjustable inseam it goes from 30-36 inch I believe
I'm 6' 200 lbs and wear a size L pants and jacket in a frabill Sno suit fit is nice as theynare both "cut" to move and work in.
I just got the Striker suit. Im 5'10 and 185. I got the large coat and med bibs. The coat has plenty of room for layers. Im thinking i shouldnt have mixed it up and gone with the large bib. Im usually a 33-34 waist jean and their cutoff between med and large was 34 so, it was a guess on my part. It fits fine just no room to layer much..but sounds like might not need anything more with these suits. Time will tell.
Im about your size, I dont bother with bibs or parkas, layertop[Light all merino wool long sleeve, medium merino wool long sleeve, wool sweather, fleece jacket, raincoat .Bottemfitted long johns, not cotton, go polypro, loose long johns, regular pants, rain pants.Granted temps are nowhere near as could as yours down here in CT, but layering lets you remove layers. Merino wool is pricey, but you can find it cheap in thrift stores, even wool dress pants. Wool is the ultimate fiber, stuff like Under Armor dosent come close, wool retains warmth when wet, dosent smell, regulates body temps, in short I love wool.