Actually, nuCamp no longer recommends the three point method for neither the 320 or 400. https://nucamprv.freshdesk.com/support/solutions/articles/44001800473-changing-a-tire (View Post)
Not sure where you got the price for the Flow box, but nuCamp now has a "store" on their website that is selling some Alde pieces parts. You may inquire (help@nucamprv.com) if they will pro… (View Post)
Here is a thread that should help. At this point, most owners would consider replacing the heavy 6V AGM batteries with lithium. https://tab-rv.vanillacommunity.com/discussion/comment/204574#Comment_2… (View Post)