in reference to your mig-19 kit, most migs within the former ussr service did have an interior color of a green/bluish color scheme, at least with the various types of reference material that i have observed (squadron books and various photos). note that depending on the country that you plan to on referencing your kiy too (i.e. ussr, albania, bulgaria, china etc. etc.) some of the wheel wells were either white or silver (metallic) in color.