As far as current production amps, I do not believe any Mesa amps have tremelo, but most have reverb. The Heartbreaker is out of production and didn't come with trelemo, either. However, the Tremoverb had both tremelo and reverb, which would meet your criteria. It, too is out of production, but you can read about it here:
http://mesaboogie.com/support/out-of-production/tremoverb.html.
To get closer to your Vox tone, another out-of-production line is the Atlantic series. I would think the TA-15 or TA-30 would get you close to what you are used to, tone-wise. You can read about that line here:
http://mesaboogie.com/support/out-of-production/transatlantic-series.html.
I have not played through any of the amps I just mentioned, but, from what I've read, those might be a good starting point.
I, too, am in a band that plays 50s and 60s rock only, and I am using the new Triple Crown 50. In that amp, you have the choice of 2 EL34s (stock), 2 6L6s, or 2 6V6s. I ordered 2 6V6 tubes for my amp. That immediately cuts the output power to 25 watts and delivers that vintage 6V6 tone reminiscent of a Fender Champ. Add to that, there are 2 overdrive channels that will cover just about anything aside from the famous Recto tone.