Army Air Corps Westland OH-13 Sioux

I have just bought the 1.48 scale OH-13S Sioux from Italeri (kit no.857). Although it includes poorly-registered decals for a British Sioux, it is very obvious that it cannot be built accurately as the cockpit ‘bubble’ has doors that are far too big.
Is there an alternative 1.48 Sioux with the correct doors that could possibly be used? As far as I can seen there are none. There is also a real paucity of after-market parts.

Unfortunately I don’t think there is any other options, she is the only girl to dance with. Eduard did a pe set but that is it.