I have a couple of OHR Sprints - 30 & 40 M.
I have a photocopy of the 30 & 40 Meter manuals that I got from Marshall last year.
These have direct conversion receivers and make about 1-2 watts output.
Not sure that there was a Sprint I & II though, there may have be a Spirit I & II.
email me direct at "my call" at arrl.net.