I like to strip rusty bikes down to the bare frame and take them to an industrial powder coating place. Somewhere that chemically strips off paint & sandblasts off rust. Get it powdercoated one layer primary color like yellow or red. Afterwards, spray inside frame with aerosol grease. Build bike back up with all new consumables. Forget about spending big bucks on stupid decals. Bare costs can run between $300 to $400. But, results are usually excellent. And, beautiful restored bikes ride better. Be good. Have fun.