I thought the Easy 8 kit was not just out of stock, but that it had been discontinued. I know there is someone on RC Tank HQ that is advertising a T23 turret. I think the biggest thing it lacks is the muzzle brake.
http://www.rctankhq.com/T23_Turret.htm
That still leaves you with modeling the engine deck. Attached is a shot of the Easy 8 Kit, and the final product. The kit is mainly the turret/gun and the deck. A lot of the parts on the little trees are the turret and hull detail pieces. You can by them in plastic from Tamiya, or in metal from ETO Armor or BYA.
Hope this helps. Have you checked with the guys at Bay Area Tankers (BAT)? Some of their members should be in your area, and might have some more help.
Kevin O
<S.C.A.T.>
1/16th F/O Tamiya - Sherman / Tiger / Pershing