This has been a long-pending project here at LemonJello Industries. With the cancellation of the VH-101, The V-22 is selected for the executive transport role in HMX-1.
Laying out the additional windows:

Cutting plastic:

Start to the executive interior:

Front office/flight crew seats (modified on the left, stock on the right):

Added some detail to the forward bulkhead:

Additionally, there will be an additional two bulkheads put in to separate the VIP section from the tail ramp and forward door, along with seating and other amenities fitting a VIP transport. Externally, there will be some work done to the nacelles for improved IR suppression and added chaff/flare buckets and antennae.
I hope to acquire a set of Hawkeye Models' VH-60 decals to complete my "white top" V-22.
More photos to come as this project progresses.