PC spares or repair (Chells SG2)

Story time.
This is my old server, it suffered a thermal shutdown.
A helpful person said "it's a blocked heaŧsink, simple job, clean and blow dry it'll be good as new". A day after the thermal paste arrived he striped it down cleaned and vacuumed "Oh dear I don't think I should have brushed the processor seat, I might have bent a few pins".

Now it won't switch on and is deemed as scrap.

What works.
All fans and psu are still good as is dvd drive and the 16G pc3 ram.
The 2.5 sata hdd's have been security erased and have a fresh install of Unix server on them (username and password given on collection).
These are a Z drive format and will not operate a windows, Linux or mac system without considerable work. If you don't know how to handle Z do not respond.

The 2GB Nvidia graphics card is still under warranty and has less than 20 hrs use But I don't know where the box and documents have gone?

The wide screen monitor has RGB lead connected and DVI to HDMI adapter has never given any problems and was working perfectly yesterday whe n tested on another pc.

Tell me your story of why you would want this job lot and when you would like to collect?
Don't cherry pick as I need it all gone due to lack of space.