Peavey valve king sounds good,i never heard the tone from them though. And keep in mind tube amps are loud.
And your gonna want to crank it to use the power tubes.
On a lower volume your only playing through the pre tubes. I would look into blackstar amps or like haghj said the line 6 spider jam would be a good amp for you,going by what your saying. But if ur stuck on a tube amp ,blackstar/ vox. Believe me 5 watts would work for small venues. Good luck