Hey Dean,
I rolled an early NOS 1950’s brown based GEC U52 in for the rectifier and NOS 1975 Reflektor Silver Shields for the output tubes. The U52 is considered one of the 2 best 5u4g rectifiers ever made and the Reflektors are considered the top 6922 ever. The sound is open, detailed and fast, but very musical. Soundstaging is amazing. Both front to back and left to right. Deep, layered and detailed.
I could also see someone liking 7308 or 6922 NOS Telefunkens which have a warmer sound signature but are a little too slow and thick sounding for my tastes. I tried NOS 69 Tele 6dj8’s and without any hours on them, the Reflektors bettered them in all the areas previously mentioned except in mid range richness but at at the expense of speed and detail. The Tele 7308’s are considered superior to the Tele 6dj8’s though.
Please be sure to post your thoughts on the 205 when it arrives! 👍