It's funny, I don't think of this one as that small. I actually started on a 1/4 scale version of it which is half the size of this one. Had most of it done when it came to a halt when the #80 drill broke in the column. The mishaps always happen on the most difficult part when you're almost finished with it! At that size (1/4 scale), it's just plain tedious to remake it. (No cnc or magnification, just the dials on the machine.)
ttrikalin can verify how fun this all is. He did Tiny in both full and half scales as well as starting 1/4 scale.