Separate idea; a space-condensing wagon that weighs 10 times as much; but carries 10 times as much. locked behind space-tech (if space age is installed, behind shattered-planet). If you can, see if you can make it so the items have to be 'packed' and 'unpacked' somehow, either slow to retrieve, or requiring electricity perhaps if that can be done.
one method might be to add special 10X "super stack"s that a special building-inserter can make as its handed items for all the base ores/resources and which can be un-stacked at the other end by the same inserter. these items should be utterly useless unless unstacked by the special inserter-building and it should only be able to output/accept said items from the special space-warping cargo wagon.
(you should be able to use the graphics from the inserter-crane mod as it is licensed under "MIT" so its theoretically free-for-use--although you obviously should credit them. https://mods.factorio.com/mod/nco-InserterCranes )
