That's funny Jelly, I'm in the same boat, that second story can be a real workout. The plus side is I've lost 20lbs since I started just from hauling wood and going up and down ladders and scaffolding.
He's right, it isn't easy, but at the same time it isn't rocket science. I found the joist and truss engineers to be a lot of help and didn't mind answering any of my questions when they arose. I built with SIP panels as well and found that quite a bit easier than the stick framing. With the way the economy is you could probably hire a framer to help you, a second body is essential and money well spent.
I'm trying to get my inspection done soon so we'll see how it went. So far I've had a lot of good feedback and my SIP engineer said he's never seen such perfect walls (tootin' my own horn
), makes a difference when the framer and the finisher are the same guy. The best thing of all is it's the best excuse to buy ANY tool you ever wanted.
Sean