New build ideas Plex + multitasking NAS

I am looking a building a plex plus other services sonarr, pihole and etc…
I was looking at the multi taking build idea here: [Guide] OTiS 1.0 - Build your own Intel QSV HW transcoder! but the prices are alot steeper of the CPU and MB. Is this because these parts are rarer now and something more recent could be cheaper? or is this because of the global issues with chips/pandemic? I am based in CA, USA and wondering if there is something else i can look at that would be comparable cost wise?

This is the build I was most interested in in the previous link: