thoughts on this frame for a 27.5 slackish hardtail trail bike?

[2Wheelzgood]

So I have a Enduro 27.5 boost full suss bike already, my idea is to build up a hardtail that i can use for gravel/xc type stuff and move my beefy enduro wheels over for when i want to tackle something a bit more rough on it.  I can't seem to find a non fat bike slack 27.5 hardtail so i'm considering this one:

http://www.velobuildmall.com/products/2018-velobuild-carbon-fiber-mtb-275er-plus-frame-for-30-tires

or maybe one of these (same bike?):

https://www.aliexpress.com/item/32815484920.html
https://www.aliexpress.com/item/32843462043.html?spm=2114.12010612.8148356.1.346852e7sIRdhD

any thoughts or are there any other options out there i have missed, the widest tires likely to go on it are 2.6.

thanks for any help!