Okay, this is going to be short but sweet. For tubes you have 2 choices (well you have a LOT of choices but these are 2 good ones). Cheapest is some EF92 tubes, best (but more expensive) are some WE408A tubes. You can get these directly from Little Dot or save a few dollars and get them from Tubedepot.com. For the OpAmps, again you have many choices but 2 of the best are the OPA2107 or the LM4562. David recommends the LM4562. That's it.
Can anybody point me in the right direction to purchase these two opamps
I have just purchased a LD1+ from a fellow head-fier and it should be here by mid week
My RS1i is waiting patiently.