My son started on a Litre bike (FZ1) when he was 18, after years of dirt bike riding.
We had some rules:
1) ALWAYS full gear: even when just riding in our neighborhood.
Helmet
Boots
Gloves
Armoured riding pants
Armoured riding jacket
2) He had to complete the MSF Basic Rider's course before he could even sit on his bike.
3) He had to read and discuss with me three books
1. Sport Riding Techniques by Nick Ienatsch
2. Total Control by Lee Parks
3. Proficient Motorcycling by David L. Hough
4) He had to ride his first 5000 miles with me (following me while i rode my bike)
The trouble you're most likely to encounter during "on the road driving" resides between your ears and in your right wrist. There is no way to put a 30 year old head on an 18 year old body. Discipline and self control will be your biggest assets.
That said, here are some pointers:
Spend dozens of hours practicing emergency avoidance techniques: panic stops, swerves, etc. Start slow and gradually built up your proficiency.
Always look through your turns as far as possible. You go where you look, so learn to look at your exit. Target fixation is deadly.
Use your front brake. I encouraged my son to use ONLY front brake on a few rides, so he learned to trust it. Your rear brake will lock up much easier then you think it will.
Practice being smooth.
It's all about traction control, and abrupt changes in input reduces traction. So accelerate smoothly, deccelerate smoothly, brake smoothly, shift weight smoothly.
Please do NOT think that you will be the exception. It's unlikely that you are superman. You are probably as human as the rest of us. So you are going to make mistakes, you are going to get excited, ad you are going to be tempted to ride beyond your limits. The degree to which you mitigate those elements may mean the difference between life and death.
PLEASE put in thousands of miles of seat time just getting used to the bike. GO SLOW! Learn about the geometric and gyroscopic forces that affect motorcycling.
And I'd go for the R1.
You are almost certain to crash the bike (everyone drops their first bike). The R1 will be WAY less expensive to repair or total.
Good luck.
I don't mean to be harsh. But you are making a risky desision. Please manage that risk wisely!