I’ve bought some superstar switch/crest at £220 they are a reasonably cheap & light way to get the bolt-through axles.
If you’re going to “upgrade” the wheels, get the original hubs built onto some Stans rims with Double butted spokes. They’re essentially DT 350S hubs, which share the same internals as the 240S just with a slightly heavier hub body. They’re country miles ahead of the Superstar hubs!
OEM DT rims will probably be a bit soft though, nothing wrong with them til they die though to be fair, probably light enough at least.
That carbon one does look the Mutts nuts, that said, was seriously impressed with the ally 8.9 in the flesh too. Would buy one tomorrow if I could afford it!