If you look at some of the parts made by Joe Andrews of Hoosier Profiles, they are about the finest wheeling components around. He does have the quick release made into the upper wheel cradle, and has a real nice upper adjuster. May give you some ideas.
http://hoosierprofiles.com/Adjusters___Lifters.html The parts I used on the wheel I made were from used MetalAce components bought off Craigslist, a bad economy and the closing of a motorcycle shop, he didn't have the storage for the complete wheel and cut off the major components. Hindsight I should have bought all new parts from Joe, I would have a much nicer machine. My adjuster had already been welded in once, so after the second installation the outer tube had shrunk quite a bit from the heat where the Acme screw didn't perform as well as one would expect. The Hoosier Profiles adjuster that I used to replace it was comparatively like a fine clock mechanism.
Here's a link to my build thread, frame was based on the Imperial Wheeling Machine by Kerry Pinkerton. There are plans on allmetalshaping. This design uses a bolt on lower arm to give you a bit of fudge factor in alignment of the top to bottom, and the ability to change lower arms in the event of clearance issues on high crown panels. Not sure how adaptable that is to the Glover design, but may give you some ideas. The adjuster being on the top or a kick adjuster on the bottom is really a personal preference, I thought with wheeling larger panels in the machine that the upper adjuster may be more accessible.
http://www.metalmeet.com/forum/showthread.php?t=6763 Metalmeet, allmetalshaping, and the home-built tools link above, all have quite a variety of designs that you could look at, and the HAMB also has one thread on "show your English Wheel".
MetalAce recently posted some details on a new frame design, I believe based on the John Glover, here is their "build" thread....
http://www.allmetalshaping.com/showthread.php?t=11059 
