focul extender, ep's & 4/3 T adaptor

[seahawk]

Hi, i need a 2" diam. focul extender, to go onto my GSO focusser, around 35-50 mm long if anyone has.
Also looking for 2" ep's to experiment with if anyone has.
AND...a 4/3 t adaptor to suite Olympus camera

Thanks in advance.
Alex