Old bits/hackamores wanted

[NW1]

i am looking for a german hackamore/american gag/tom thumb (or similar bits) in 6inch or kineton (full size) to try on my horse on instructors advice.

I cant afford to spend out on these 'bits' if they dont work so if anyone has any lying around that are collecting dust i would greatly appreciate them & will return them.

I will of course pay for postage costs.

Please help xx