Found a 2009 Mac Pro upgraded, little help ASAP

[Kraniac]

C(-)ris wrote:
Buy my 8 core 2.26 2009 for $625 instead

http://forums.macresource.com/read.php?3,2035087

I can flash it to a 5,1 and install Sierra.

I plan on back pedaling to Snow Leopard for a few devices I need to run

Where is the machine located C c c ris??