Retopologise 3D crane and break into seperate components

Hey guys, I have a crane in .IGS format or already imported into a 3DS project. I need somebody to remodel the crane to a low polygon version. You will also need to separate the arm and hooks so they can be animated. It would be ideal if you could set up constraints so that when the boom arm lowers the ropes move with the crane.

Please let me know how you will achieve the work in your bid and I will select the best freelancer based on skill and price. Thank you!