well what I think is that if you want to resize one of these without the vector program, don't go past 25%. the digitalization will show as blurry pixels very apparent after that ratio. then you will have to box and stretch the hull around the details, windows, pinstrippings, etc.. or, got to a stationary store, or print shop and enlarge to a 13x11'' size instead of a 11.8x8'' size, then the ship will be bigger, use the thickest card stock you can get and the model will turn out ok. for starships that aren't white, I use the thick medium grey kind, it helps with a lot of problems, in some parts I thin down to another thickness of grey card stock, and then if its say, the ent 1701-A, which looks perfect in pearlescent white, I use black copy paper thickness and then simple cut slightly smaller stencils of the parts and back them with it and for seams, aluminum tape. still not perfect for light leaks, but you're really close at that point. for say,the nacelle cap joins with lighting, you will have to do a lot of blocking with foil tape or black paper. use black glue if possible, or thick black paint instead of glue. be very careful and layer so you don't soak and warp the paper. for windows, I stuck a led in typing paper and then punch that into Styrofoam black and use that to mellow out the glare. make sure that all wires are not exposed, I would duct tape the leads entirely with auto interior duct tape -non metallic- and that should stop shorts. use computer ribbon cable , its smaller and you have a spaghetti monster inside or running thru tubes. leave hatches near the main lighting. you never no if you will have to open her up.