Which PE kit for Flakpanzer Wirbelwind

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Hi Chaps,

In my stash I have the older version of the Flakpanzer Wirbelwind Tamiya kit 35085.

I have been looking around at PE kits and have come across two similar ones.

Could you tell me if I need to use kit 35278 as this kit seems to be the older kit or could I get the newer one kit 35516 ?

I understand the Tamiya kit 35085 was re-released under the number 35233 and wondered what the difference in changes had been?

Any help would be appreciated.

I have ordered both kits for Telford as the one is limited availability so hopefully with your wealth of knowledge you will tell me which one i need?

Any further suggestions welcome and appreciated

Thanks

Rich