I only know of Italeri making a straight CH-53E kit in 1/72 scale, but in all honesty it doesn't do the bird justice to say the least. I was an avionics Tech in Tustin, El Toro, and finally Miramar in HMH-462. Believe me, I am waiting just as impatiently....lol There was a person in the forum who was supposedly going to make a 1/48 and a 1/32 scale CH-53E garage kit, (Nightflight models I believe) but his website has since disappeared off of the map! Most people convert the G model to an E, which for me at my modeling skill level is not very comforting!! Good luck, and Semper Fi!!