I need to make a new motor mouint though, the existing one is starting to bend slightly (one too many flips). Doesnt help that the metal I used was some nameless aluminum, rather than a specific grade like 6061 etc. I found the 6083 I used for the custom bottom plate to be brilliant- a fair bit stronger than 6061, but cheaper than 7075.
Custom battery plate is for sale if anyone wants it, just PM me an offer.