I was just wondering if it would cause any quest problems if i copy and paste the Enclave base crawler to turn it into a player home

As long as you give all the elements a new form id, then you are good to go. Note, this is only critical if you want to modify the existing elements, but it is good practice so that any mod that would change the stock crawler would not change yours. Or, you might change something on the crawler that is used in other non crawler places.

Sure, you don't need to rename the textures, meshes and things like that, but your not changing those. Most of the crawler static elements would not need to be changed, but the containers and beds and such you may want to do something with will need to be renamed. For example, you may want to remove ownership or the respawn, this way you only do that to the containers that are in your crawler, not all of them in the game.

You might also look on the Nexus, as I think someone has already modded the crawler into a home. You could take that mod and move the crawler to somewhere else if you wanted, or modify the mod to your tastes.

Edit, here you go, already done and ready for your to tweak, or just use:

http://newvegas.nexusmods.com/mods/46173

There might be others, I just searched for Crawler. At the least, see how this person did things in their mod so you can do it in yours.