I got one on E-bay also (though not quite so good a price!) and converted it to a Swedish HKP-9. It's an excellent basic kit with great potential for detail, and I found quite a few interior shots of various models through Google searches. Scariest part for me---which would apply to maybe most of the military versions in use---was sanding off the molded single windshield wiper to substitute the double wipers that seem standard. Polished it up and shot two coats of Future, and was delightfully surprised by the results: it looked perfect.
A study of lots of photos shows different versions (even operated by the same forces) had different outfittings of aerials, sensors and assorted "bumps," so check your sources (or the web) carefully.
This was the first large-scale copter I'd done since the old Revell Huey 30+ years ago, and it was a fun project. Hope yours goes as well.