The original thread on this subject isn't much good as photopost is still down so here's a few pics for you to get an idea of what I did...
Cut out the middle bracket and replace with pipe, I added 20mm for clearance of gear change rod.
I had a block of 4x2 and tied it in position with the new control bar and made cardboard brackets. All welded up.
Lengthened the gear rod by cutting rod and sliding the ends into a piece of stainless pipe, this was the most expensive part of the whole operation, tube and SS welding.
My new riding position.
Used the original brake line, bent to fit and not that pretty, but it works...
Hope this gives ya some ideas for your own project, at 6'2" I just needed to stretch out, ya gotta be comfortable on ya steed...
