i've started a project about Treasure Planet, some ships are already done, but i don't know how i can model this thing, here is some references : 
https://youtu.be/MI1_3oqwsFk?list=PL4tadHw-sbDsPHuIFfT0E8XPk8LkNvqUZ
I was thinking of Kitbashing, but it making my pc laggy, even i've got a strong i7 core CPU.
Here is what i have done so far :
