Thanks for the help, luvdunhill, The BGs are in my shopping cart and the preamp comes in the mail today. I'm going to do my due diligence and put some hours of listening into it before I roll the caps, so I can appreciate the difference.
I'll open it up and post some pictures before I do the work. My DIY legacy is a handful of failed cmoys and a slightly manlier handful or working cables, so this represents a big step for me. Out of the kiddie pool, into the shark tank.