>>9609350>I'm very interested in making custom Mechatro WeGos (like pic related) but IDK where to begin. You begin by visualizing what you want to do in Photoshop or on paper or something. dalong posts shots of pretty much everything Koto and Bandai with a pack of cigs for size comparison, so that one would be a good source to check if you can combine the parts you want the way you envision it.
>Are there certain lines that work well to borrow pieces from?No. Unless you plan to only do limb swaps and work exclusively within one line and one scale, there only are pieces that work well for your project.
That convo there probably will require cutting and assembling new fixings for the shoulder joint arrangement, which really isn't something you should try on a kit you mind ruining.