When I used the Abit BP6 in a Linux box build, I did it as a one-Celeron budget PC with expandability, and put some notes on the Web at the time:

https://www.neilvandyke.org/cheap-pc-2000/

That page includes pricing info for each component, and how I bought it. For example:

> Abit BP6 Dual PPGA Socket-370 motherboard, UDMA-66, 2 ISA, 5 PCI, AGP 2X, 3 168-pin PC100 ECC, max. 1GB RAM. Retail version. (Essential Computing $120 + $14.25 UPS Ground + $3.60 insurance = $137.95)

> Intel Celeron 500 Retail version, with warranty and CPU fan and heat sink. (Egghead $135.99 + free UPS Ground = $135.99)

The box was my workstation, and for a time also a public Web server on ADSL. I never actually added a second Celeron (cost money, and I still wasn't feeling CPU pressure) nor the UDMA-66 (reported to be less reliable).