Thanks for confirming. When progressing, I liked the design even more. It's module-based and easy to print and modify.
I printed the frame with polycarbonate, sort of experiment on the material. This is how far I'm right now.
One issue I met is with the sus_fsblock_typeb. I ordered HSP 166015, at least I thought it was. However, with the typeb block, the CVD seems not long enough to let the wheel coupler pin hole to show up... but with typec, the CVD just not long enough... So I had to modify it to make the whole block shorter (it's the grey part in PETG)... so far it seems working... but I don't know if I will hit anything later.