the yama o7 engine and chassis are flighty by nature, hence why it got abit of a hooligan reputation.
i know your is a low reving by nature, just that most other and smaller inline 4 are not, so require more revs for the same effect.
the speed is not like the yam 7, its behaviour is more gentle and closer to your cb.
you can even just get a new seat or refit with different foam...options are available.
reliability is very good for triumph, even honda and yama fook it up even to this very day. i mean they still cant paint a swing arm or a sump correctly even now.
really i think you just need to get the right bike for you and live with the price of something. cos if everything is just about price , either learn to service it yourself or get a smaller bike.