Remix of Mars Exploration Rover (Opportunity and Spirit)

I reorientated all parts, so they should be flat in Cura and ready for printing. If you have any suggestions feel free to comment. I'll try to fix it asap. Also I repaired the tires, which were non-manifold.

As for the original you have to print one from all parts. Except for the following:
6x tires, inner wheel, outer wheel and wheel center
2x strut pin 1 and strut pin 2
3x arm knob

You can also change colors at the following heights:
Solar panels at 1 and 5.2mm
Camera array at 6.6mm