A wake up call.
1) the terms "budget", "good", and "tubes" are mutually exclusive.
2) I haven't seen a tube tuner manufactured in about fifty years.
3) I've never seen a tube amp with more than two channels.
4) As for all those speakers, you'ge gonna want/need an inpedance matching speaker selector.
Now, if you want to drop that tube requirement and accept that that a proper speaker selector might bring up your budget somewhat, perhaps some help can be provided.