Guess I should correct myself...the head isn't ON the head tube, the head IS the head tube!
If this one doesn't sell high, the Hoppy trike also on ebay right now no doubt will! http://www.ebay.com/itm/Rollfast-Ho...faultDomain_0&hash=item19db82752d#ht_70wt_913 It's in pretty decent original condition and only missing the rear seat bag and grips. Finding a replacement 16" front tire would be no biggie. All the medallions are there along with the head badge and hub caps. The opener was already out of my budget range.