Peep sight for Crosman V-350

[OTmachine]

Anybody have any .stl files for a Crosman peep sight?  I had bought a stock replacement for the missing one on my V-350, and recently thought that it would be nice to have a peep on it to teach the grandkids.  I found this on printables.com and it may work.
https://www.printables.com/model/524205-ruger-1022-receiver-mount-fixed-rear-aperture-peep

[TorqueMaster]

I don't have an STL, but if you can sketch out the dimensions of what you want, it would take very little time to design the part and create an STL for it.  PM me if interested.

[OTmachine]

Tom, thank you for the offer on the .stl file.  I have not decided which way to go yet on the V-350.  I am going to make a ball and post type muzzle end sight for it 1st, then experiment a bit to see what I like.  I am thinking about starting my grandson out on either the V-350 or a 1400 / 140.  Thanks again, Keith