New to Jeep world

[Main Line R36 Box Motor]

I'm a recent arrival to the Jeep world, only discovering the 1950s-60s Jeeps. Have some historical interest in the year 1965 , a major year at Jeep with the new DJ5 replacing DJ3A and the last Jeep wagons. Would like to own/drive an early DJ5 or late wagon. Some general questions:

Regarding the very late ('63-65) wagons and delivery models, the Wx4 page on VINs states all '65s are indeed leftover '64 dealer stock, renumbered with new 1965 VIN numbers by dealers with Kaiser Jeep approval. I seem to find this accurate. But another source claims the '64s and '65s(?) were assembled from leftover shells and parts after the Wagoneer/SJ was introduced, and the Standard Catalog has 1965 as a separate year for the wagon, as opposed to being simply selling off '64 inventory (though it notes 1964 and 1965 are identical). Most sources do have production ending in 1964 (exact date)?

Are DJs safe? Read stories of postal carriers "tipping" many times in their career, with the boxy shape and top-heavy load. The original (1965) DJ5 brochure has 3,200 lb GVWR and 1,934 lb curb weight, any details on the exact cargo volume (cubic feet)?

Thanks.

Kevin Wong
Writer/Historian
www.coronayard.com/aboutkevinwong.html