She looks decent enough.
I paid $850 for Fiona & she needed a lot of elbow grease
One thing to test is the charging system, Make sure it charginging the battery.
Charging begins at 1750 rpm. Below that it's a drain
For your height & weight the 750 will be perfect. Plenty of power & very agile.
I got back on a bike after 30 years on 4 wheels. I found the 750 the perfect starter bike.
You are much taller & probably 30 years younger than me.
In a year you can move up to something bigger.
Go for it, you'll LOVE this bike.
Good luck & welcome
FIONA
1981 CB750K
Andy
Tennessee