I continue to find the Mini Torii a truly flexible and consistently strong performer.  I have used it with Lowther PM5A drivers in rear-loaded horns, with two pair of more recent and older Klipsch Heresy, with corner-loaded Kipschorns, with Klipsch La Scalas, and with a diminutive pair of horn loaded full-range (well, not quite) Fostex drivers -- the last of these being part of a very reasonably priced kit from Madisound.  In all cases I find this amplifier among the least particular of many I own in terms of thoroughly involving peformance with all of the above speaker systems.  I do find it suits loudseaker loads in the nominal 8 ohm range perhaps a bit more than the two mentioned above that have a nominal impedance of 15 and 16 ohms.  That's just my perception though.  I find the power transfer better suited to the lower impedances, but the differences are not at all huge or glaringly obvious.

I've read many contributions here -- all of them well-written and well-intentioned -- concerning parts swapping.  If I may submit this, it might be an idea to become accostomed to the stock Mini Torii sound for a good while.  I say this because I truly understand the wish for more of a good thing!  I'm encouraging that new owners give the amp some time, just as it comes from Decware.  I did add a headphone jack to mine, but I have done absolutely zero to the circuit -- at either the signal end or power supply.  And I have tried a couple of different output and input/driver stage valves.  And if you do roll tubes quite a bit, don't yank them in and out constantly.  Don't turn the amp off and on in rapid succession while making changes.  Tubes sockets are durable, but doing lots of tube changing can also wear or loosen connections on socket contact points.  All of the above is suggested as personal experience and from making my own mistakes, on occasion the result of my own impatience.  I have all the caps I need to change if I wanted to -- both for the power supply and coupling between stages.  Same with potentiometers.  I just can't find a reason to justify the rounds of surgery required.  Too much of that and one can start having other issues...  Pretty awesome amp just as it is!

From previous experience I'd suggest RFT. They made some awesome tubes.

I used an RFT EX81 in my EICO HF81 and it was a great tube, so I think you may have a winner there.

There are RFT EZ80's and 81's in the elusive package. I hope it does arrive. How are you having the tubes sent to you?

The box is likely stuck in Customs. I did not know about the $50 issue. I will go to the PO after 30 days and start the trace. That may help.

It's not a problem you created. I just wanted you to get the tubes. I think you will get them but I had no idea it would take this long. When you get the box you should be set for a while.