Thanks, Mark. The 7N7 route sounds like it has some potential. I doubt that piggybacking adapters would be of any detriment to signal quality, but it may make the resulting adapter a bit awkward. I'm pretty sure the lower portion of the Bolder adapters are an extension (to bring the adapter out of the box) that amounts to something similar to piggybacking two adapters. Correct me if I'm wrong, but it appears that way. I have adapters from Jim Cross in FL, and that is how his are built. He can also make L-Octal adapters for around $75/pair I think. He took a week to make my octal adapters at the same cost.
The Taiwan adapters appear to require, or may require, pulling off the cover to get them out, which is a PITA in my cabinet. Am I wrong there - do they come out easily with the tube, or are they left down in the box when you pull the tube?
I look forward to hearing about your results, Mark. My friend, Peter, has ordered a MW TP for his system after I brought mine over to his place and did a series of blind tests with him. He's thinking of trying 7n7's as a reasonably priced alternative.