hello mate, there aren't many places in the uk you can get one from.
so i have looked about and in know that stormer hobbies in the states has a couple
https://www.ssl-stormerhobbies.com/c...pl?pn=TAM84075
you can also try amain
http://www.amainhobbies.com/advanced...M84075&x=0&y=0.
there are just 2 too be getting on with you can also try just typing in the part number in google search and seeing what comes up. Part number for the alloy one is TAM84075.