N/A Looking for Crosman 451 technical info

Hello all,
I'm contemplating attempting to reproduce something like the Crosman 451, but the information I have on that design is meager - just enough to picque my interest. I'm looking for resources with good information on the mechanisms, assembly, dimensions, etc. I understand that there is (was) a factory service manual, and would love to get my hands on a copy. Any other info sources would be greatly appreciated.

This is the most informative source I've found thus far: https://worap.wordpress.com/2016/12/02/crosman-451-hammer-saga-part-1/ (There's also a related article about fixing the seals).

Anything else would help immensely. Any documentation I produce from this effort will be freely shared here on AGN, probably as an ongoing plea for help... ;-)

Thanks!

GsT
 
A quick search for "Crosman 451 repair manual" brought this on the Bay:
https://www.ebay.com/itm/371486951365

Seems like a huge undertaking to replicate this design which has some odd features, notably the 'turret' magazine. The main valve/operating block has a bunch of complex machining. As for dimensions etc., may be worthwhile to look for a broken one to disassemble.

Don R.