Good day Capt Sim. 

I understand your dilemma. For the first issue: I think if you could give us a cockpit product for $19.95, for example on your website. I would be more than happy to pay for that and manually install it into my Sim to get the model working fully. 

As to the Microsoft Marketplace issue, I think a mega pack with all the previous variants priced at $79.95 is reasonable enough. You could also sell complete individual products as part of a base design giving a little more value to an individual “E” or “H” purchase. 

Final thoughts on the “E” exterior only model for marketplace, I think another good strategy would be to add the cockpit. And at the same time work with Microsoft to create a discount code that could be entered for those of us who were early purchasers of the Exterior only.  An alternate option could be to remarket the Exterior model, as an “Ai” only model and update it to add some flights plans for it coming and going to various locations.  This could in turn lead to more follow on products of more liveries with attached flight plans.  For example, you could start to make Liveries and flight plans that complemented popular airbases.

Just a few ideas that I had rattling around. 

-Preston.