Hi Dino!!
Sorry for being late in answering, i´m in Germany right now and so i can´t use the pc as often as i want.
About fbt,i have just an echo unit.I´ve owned an fbt tube mixer once, it did play nice.
For a while i´ve owned some Geloso pa units, they come with either el84,6v6, 6l6,el34,el 503 or other discontinued valves.They are excellent sounding and built like a rock.If you find one, get it, sometimes you can find them fior cheap.
I´ve also owned two Davoli amps, the organ bass(el 503 and transistor pre) and the davoli organ.Again, great sound.
As far as italian amps that i still own are concerned, i have a Farfisa 20(with 6v6),a super MB (with an el84),an ariston(again, el84), one elka(el84) and a GEM( with two 6v6 if i´m correct).All of them are excellent amps.
The Farfisa is a very clean amp,similar to fender, as does the ariston(even tough there´s a different power tube and just one tone control), the super MB is similar to the vox amp and the GEM has an excellent clean sound, on a par with a vintage fender.The elka has a great clean sound , even with the volume on ten.
About your Meazzi metropolitan, i strongly suggest you to try out the metropolitan with a different cab

.Its small speaker doesn´t give justice to that great amp;).
About Binson, i´v had both the echorec and the valve mixer, they are excellent sounding units.Still have to find an amp by them. The echorec required too much care.My amp tech is thinking about making a reproduction of the preamp section of the echorec and of the mixer since they sound so great .I´m also lucky that my tech has great knowledge and a lot of passion for his work.
I know somebody who, from time to time, owns some binson or other vintage echo units, mostly echorecs.As soon as i know that he may have something that could be interesting for you i´ll make you know ASAP
I´ve heard-but not tried- the roland space echo pedal(btw, Gene use it in the mid 70´s for his solo spot), it sound nice but not identical if you compare it with the original.It is digital.
On the echopro rack unit i have a simulation of the echorec, it is nice and accurate-maybe too much accurate, what people loved about them was also the unpredictability of the repetiotion character-it can be useful when you can use it in a song, or as a delay on its own, but you can´t compare it really with the original, especially because of the valve preamp section of the echorec.On the plus side, the modern versions are more reliable, and more portable.It is a matter of preference and tio think how many people, besides musicians, will spot the difference, i think.
I hope i´ve answered to your questions , in case i´ve overlooked something i´ll be glad to post some more,i hope people here don´t mind.