Replying to Help with a KS longboard design!

Dear NS-

I would love some help figuring out what Kracked Skulls longboard fits me best. I'm 6'0 and 160 lbs, i've been longboarding for 2ish years, and i use my longboard for pretty much everything. I bomb small hills, i carve other hills, and i use my board to get me from party to party in the summers (claim). Anyways, i wanted a cheap board that was decent at everything and KS seems to fit my profile pretty well. I just have a few questions about them.

What is the difference between the M1 and the Schimitar? Is one stiffer than the other and do they ride different or is the only difference the cutouts for wheels?
What length should i get? I was thinking a 43 inch M1 or a 42 inch schimitar. Should i go shorter or longer?
What kind of wheels should i put on this beast?
Im assuming i should get the Abec berings. Am I right in my thinking?

That would be fantastic if you guys could answer my questions, and i dont want any of that "buy a loaded board" bullshit. I know they are sick but i dont have room in my budget for them. Plus i'd like some explanations in why I should go a certain length or get certain wheels. I have ridden a 46 inch M1 with the 77 mm strikers and i thought it was a tad long for my tastes.

Help me out NS!