It is easy to build your own ship if you have the instructions.
Copywrite 1957

Yeah! Looks easy. Revell heh?
Can I use my old Jeep engine that I got from the surplus with that rocket? Hmmm... I'll glue my parts with Lepage's plastic glue. It'll be a smash!
Then all I have to do is sifon enough gas to get to the moon.
Do they still sell the plans? Where? How much?
And guess I'll need oxygen tanks from surplus also( about a hundred ), and a costume from the film companies. Anyone has two big magnets to sell me? I'll use my old Radio Shack Do it yourself Radio emitter for Comm and a garage big enough to hold all the pieces.
And a computer also, My old Oscillator will be enough. With Ping Pong installed.. Do you think it'll all hold tight with enough scotch tape? Or 3M?
Can't wait to try it.
Yay? Got all the pieces!
Gosh...got no garage..!!
Seriously, I used to make a lot of models like that when I was young, even the Enterprise 1701 in 70's. I broke it to pieces when I tried to make it fly. Boy was I dumb!