[Closed] 1x9 Cranks, best VFM/weight.

Looking at shedding some weight from my Blue Pig build, thinking about changing my crankset from the bodged Deore 1x9 setup it has on currently.

Had a look at the Truvativ XO DH Carbon as a single-ring specific front setup.. although I've been put off this by the need for a GXP BB, and the expensiveness!

Anyone seen any good deals price/weight wise, not too bothered if I have to source my own chainrings, but would like the ability to upgrade to 1x10 in the future..

Thanks in advance for any advice,
Ben