I have a liking to scratch building... About the only thing I use now is seat harnesses.
You didn't mention what you liked to build - try this:
-Buy two simple kits... Only get enough etched and stuff for one.
-Build both at the same time but as you build up the etched thingy's, scratch build the other subject... Refer to references to make it more 'showy'.
You end up with two excellent models and much improved skills.
"The Grid. A digital frontier. I tried to picture clusters of information as they moved through the computer. What do they like? Ships, motorcycles. Were the circuits like freeways? I kept dreaming of a world I thought I’d never see. And then, one day… I got in.”