if you had about 100$ and a small air compressor, you could buy a pint of paint, and clear. and about a 70$ paint gun at a supply store. real car primer is good too. painting isnt hard. just cardboard up about half your garage (i hope u have one) and primer it (after sanding) the main thing you need to do to not overlap or drip is to spray PAST your target every time you make a pass. it would be easy on bumpers, they only take like 4 passes to cover the whole thing. set the bumper on the ground and start at the bottom working up. make your passes, and when it dries, flip the bumper and do the bottom. its real easy. dont forget to wet sand/buff too.
realistically about 150$ total you could have a pro paint job. me and my buddy did it on his 3000GT you couldnt even tell that we did it in his garage. we got a bunch of drips and were all bummed out but they buffed right out. just dont buff/sand the clear right off the car, i had a buddy do that to a professional paint job!