RS Pike Select+ and Ultimate 29er, 50% (£358 & £481

[dyna-ti]

Select+

https://www.wiggle.com/p/rockshox-pike-select-plus-boost-fork

Ultimate

https://www.wiggle.com/p/rockshox-pike-ultimate-boost-fork

OK, the ultimate damper is the 2023, but the only real difference between them originally was the ultimate was a bit lighter(As far as Im aware)
I think the select+ is probably the better deal. Pike being pretty much the 2nd top RS fork.