I have made a few posts over the last few days of my experiments with Old HP servers:
I think I am going to keep my server which does 30 min plots! But it is time to get rid of the other ones.
I have put one of the G7s on ebay: HP ProLiant DL360 G7 Server Dual E5645 144GB 4 x 600GB SAS (633777-421) – Chia | eBay
Let me know if you are interested in that or any other HP server hardware. The biggest problem with these is the size so shipping is a pain - even getting packaging big enough is a problem, so ideally you need to be UK based and even better middle of the UK!