I’ve always thought it’s more profitable to split but more hassle and you’ll end up with something left, even if you just put them on ebay no reserve.
At first glance your ad up there looks about the right price. Maybe you just need to put it up on more places, pinkbike, gumtree, facebook groups?
Edit – thought it was a carbon frame, you might need to go lower, I got a similar bike with a lot of spares for £1k last november.
I think as well most people will not get in touch if the price is too high for them by more than 10% or so, rather than getting in touch and trying to negotiate on it.