hello Jon ,
Re : Schimel ,
seen a few of these for sale recently , not cheap though !!
Chris Johnson in Harrogate has one ( online shop has pics - £295 ouch !! )
Also , maybe on milweb / militaria sites .
Apparantly they are / were a bit HOT power wise is why they are a bit scarce , also superb build quality puts the price up .
Have a look at the modelguns website , in particular the Marushin Luger modelgun , a none shooter but cycles rounds and operates / strips / functions exactly as per real steel .
The nearest thing you can get to a real Luger short of a welded up paperweight deact . Provided you mind a none shooter .
As regards Walther LP 53 , those words and " cheap " rarely are found together ..unfortunately ..
Regards
CARL.