I'll say this.... You don't sound like a fool so I believe you prolly won't ride like on. My first bike was a full liter (1000cc) bike. I never rode before. I did the MSF class, etc. etc.

I would recommend a new 600 (or preowned). The SV is a great bike and can be had pro owned very cheap (go to WERA forum, hint). They peak at 80 hp (tops) and have a decent chassis.

This might sound ahead of the curve for you but very quick you will get used to whatever bike.

I now own a R1 and the bike dynos at around 150hp....

I recommend youu by a bike that will make you happy now and in the future, being a good 600 is totally manageable but also has plenny of teeth.

Remember the bike only does what it is told to do via inputs... If you trust yourself then you can trust riding-

good luck!!