Framebuilders - franken-tandem

There's probably a thread on this somewhere deep in the archives (or not so deep maybe) but I'm going to hazard getting shouted down or otherwise e-reprimanded and ask away:

has anyone here tried building a tandem after John Allen's (or for that matter the late great Sheldon Brown's) instructions on joining two bikes together? i'd like to hear success/horror/war stories; whatever you got.

matt p.

Like this (http://www.bikeforums.net/showthread.php/684218-Building-a-tandem-frame)?

aha! you sir (or madame, apologies if necessary) are more better at the interwebz than i

Please Please Please put up pictures and tell us how it goes. I am putting together all the stuff to build my own frame, lugged. I've read the Sheldon story many times and i'm hooked.

Thanks for the encouragement. I think I'm going to follow the John Allen process since my anticipated stoker and I are pretty close in size. Althought that method requires a little more work I think the result will be a little more useful. I also have ready access to 4130 tubing (there's an aircraft/motorsports metals supplier nearby) so I may go for a whole new lateral or boom tube if the salvaged bike process seems to present too many headaches.
I'm hunting down a suitable front donor frame at the moment, but this looks like a project that's actually going to go somewhere. I'll try to document the process and post pictures.

Here's another (http://www.bikeforums.net/showthread.php/571783-Build-tandem-frame-from-two-Schwinn-bikes).

SSS You are golden, that is just more encouragement. The tandem is my second project.