CV-37 was the USS Princeton, named for the carrier sunk at Leyte Gulf. Based on the -4 Corsairs and Helldivers this is very late war or immediate post war. This aircraft carrier did not see action in the Pacific as it was commissioned too late.
Yes, although they only print it. Shapeways is a commercial 3D printing firm that acts as a clearing house for folks that design printable products. The designers put the item on the site for sale. When ordered, the company prints and ships the item to the customer. There is an H-39 Hotchkiss...
If you look on Shapeways and other sites like that, you will find kits that are 3D printed. Admittedly the only ones I have seen so far were armour subjects but I have not checked for a couple years now.