Dell Precision T5500 in Regina, Saskatchewan for sale

I got this PC for 300$ three months ago. Works perfectly and is on very good working condition. I just added in the HD 4550 since the GPU that was installed with the PC was much older and wasn't built for gaming.
SPECIFICATIONS:
RAM: 8.00 gb DDR3 Installed Memory
CPU: Intel Xeon @ 2.27 GHz
GPU: Radeon HD 4550 512 Mb [ I included this, without extra charge]
HDD: 250 gb Hard Drive
OS: Windows 10 Pro 64-bit [Original Version]
PSU: 850W Power Supply Unit
These are all the important specifications.
No mouse, keyboard or monitor included. Just the PC itself and a power supply cable.