It's probably too late now but the Tamiya back end is completely wrong. The rear doors are not angled. They mistook side doors stowed over the back for the actual boot doors. There used to be a AM replacement set for that issue. Have a look at the ICM 108 which is more accurate here.
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Also the Tamiya and ICM both have dimensional errors with the the front fenders being too flared towards the front, where in actuality the fender is more circular in shape. Very difficult to rectify this error as it requires major geometrical rearrangement of the front end.
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Have look at this KMN thread for more info.
H
orch 108 Type 40 in 1/35 from ICM
best regards
John W