I'd strongly suggest you get someone that knows what there doing for this one. At least get them to frame in the roof and get you started on the shingle tie in at the roof line.
To many chances of bad cuts and a leaking roof if it's not done right. Just cutting the rafters will have a stong leaning curve.
Your going to be working in compound angles for some of them and it's pretty tricky.
Chose the wrong sized lumber for the beam and rim joist and it's going to sag.
I doubt your going to find much info on building you exact roof your looking for, far to many variables.