Can someone help with rough guide to these?

[Jonathan7787]

No idea what these are worth, or even if they are desirable!

The Glock is an 18C made by KSC, looks in perfect condition (gas)
The Desert Eagle (tokyo marui)looks the same, the box is yet to be found but again it hasn't a scratch on it (gas)

The SA80-A1 (electric) says (army) on the gearbox but its clearly broken with age, has a replica SUSAT but has magnification, sling and irons - its in great condition otherwise, spares/repair here - was taken apart by me to see what was wrong when I test fired it.
The long barrel para (lol) M249 - no idea who made this, its heavy and is almost all metal, I cant see any markings on it - works but needs a service I would have thought as its been sitting for years.
I'd be concerned the zinc metal has embrittled like it has on the SA80 which caused the gearbox to crack so it'd need some attention I guess.  Not an expert.


I'd really appreciate any rough value, I genuinely have no idea as I don't do airsoft at all 
Much appreciated !