I’m new and have so many questions?

Hello together! Have so many frigs and I hope you can help me. And I’m not laughing am a woman and ask many stupid questions 🙂 So, I fell in love with the Chevy Blazer K5. At the best vintage 70 – 80. Would then like to have a gas insert installed later. Have now seen in Germany that the things would be really super expensive to go away and then screw some more. Now I have thought about impotting one. What do I have to pay attention to when buying? Can I use the Internet I’ve already seen a few of them where you can do it all completely. Are they called different or also K5. Still a very stupid question …. If of course I want to have one that is quite high. Can I still pull my horse trailer with it. But then the AK doesn’t have to be higher or not? Of course I have a friend who likes to screw and also my Bla many questions and I hope you can help me. I am already so crazy about the car that I would like to realize this room from the blazer from the USA? Dear greeting Kirsten