I got the same kit off Dean too about a year ago. Started late this summer plucking away at it, might have it ready in time for Oshawa next year at the speed I'm going.
Had no issues with the gearboxes, had some low profiles in my spare parts bin, have no idea where they came from. The problem I'm have at the moment is there a small gap between the tranny cover and the upper hull.
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HL Panzer III | HL Tiger | HL Jagdpanther | HL Panther | Mato Sherman
Hooben Elefant | HL Pershing | HL Bergepanzer IV | Tamiya Leopard 1A | WSN T-34
HL "Golden" Pan-Tiger | M16 Halftrack | HL Panzer IV | Tamiya KV-1 | Tamiya Tiger