Solution to your 1st problem is to move to Australia, where air is fresher and power is wind or solar generated.
Regarding your number 2 point:- Amongst all the amps (tubes or ss) that I've used and owned (and it's getting ridiculously a lot) , the LF339 is a force to be reckon with and I mean literally. It's powerful in every sense of the word and it throws a great punch. Like Mike Tyson's punch. I've a friend here who has owned so many good gear like Chord Hugo TT2, Cayin HA300, ampsandsound Mogwai, Benchmark HPA4, Stax Sr007, Studio Six, Audio Gd Master 9, etc, etc but after I told him about the LF339i, he bought it and then a week later after he had listened to it, wrote to me privately and said, 'Thanks for telling me about the LF339i. It's really everything as you said and more!.
So now he has sold everything and kept the Mogwai and LF339i and in a shootout, he said that the Mogwai just pips the LF339i where his ears are concerned and he said the LF339i is a fun, fun, fun tube amp. I even told him to snap up the pair of very new Bendix 6080wb for AUD $350 locally. Together with a mint pair of RCA Red Hots 5693, that LF339i is transformed and became a Rolls Royce. Now I will claim my commission from Yuking.