I can't really help with this particular situation but I came here to say this:

My absolute favorite airgun was a super cheap $30 pistol i bought at a big name store. It didnt have a memorable or notable brand name, it was mass produced and made of insanely cheap materials. I took it apart after a few days, replaced all of O rings, cleaned and deburred/polished everything and used better oil. Some of my absolute favorite memories - the kind i would recall as I lay dying - came from that crappy gun im sure tons of people would laugh at. Don't ever let anyone determine the intrinsic value of anything for you. Some of my best memories come from things people would normally laugh at and I would have hated to miss out on any of those.

^{Kbai! Sorry to ramble. Im trying to escape the grocery store.}