I have a roadster and I recently put in some new preamp and power tubes. I put in JJ ECC803 S in V1 and ECC83S in V2 V3 and a balanced one in V6. I originally had a tung sol in V1 and I like the JJ's better. I did gold pins not because I thought there was more magic in them, but rather that they will tend to perform more consistently.
I also put in KT66's in the power section. I like them a lot for what I do; classic rock, rock, blues.
With all that said, give us some clue of what sound you are going for and others might have some suggestions.