as far as payload goes, I use KAS and KIS, so id like to have the capability of carrying one containers worth of supplies in a service bay, and probably a retractable solar panel in there to. ill probably be going with the mk2 cockpit + mk2 crew cabin, so total of 6 passengers. Im not worried about mission cost, im allocating 4-5 mill for this project, and the shuttle program will be the cheapest part of it. My main issue right now is simply figuring out how to pilot these things efficiently (how fast and what angle should i be going at which altitude), de orbiting and landing on the KSC runway will be another challenge, but im figuring it out. thanks for everyones responses, Will get back to this in a few days, and hopefully complete the project, i plan to screencap throughout the whole process and create a thread for it.