You guys need to be on the lookout for some made in Germany vintage telefunkin tubes.
My D-moll has 6 of the on all the pre positions and it made everything I love about the amp even better. These were made in the 60's, I got them used form an old organ, they all test better than new production tubes and will prob last a lifetime. Your power tubes are fine with current production. Vintage power tubes are going for rediculous amounts. And good luck finding vintage kt77's