Hi Peter,
It's not hard to find something that fits the bill. Here's an initial idea:
https://www.ebay.com.au/sch/i.html?_...acat=0&_sop=15
All that essentially matters is that the CPU fits. The memory controller is on the CPU (which you're keeping), making them a matched pair. You can find the broader list of options by seeing what's in common with that CPU socket:
https://en.wikipedia.org/wiki/LGA_1155
(Alternative Chipsets are listed in the different Intel Chipsets in the 1st and 2nd tables). One simply needs to find a product wrapped around said chipset. As they are all old/monetarily worthless, simply aim for Q/H/Z77.
The limits of the first table may be an issue, which is easily clarified by stating which CPU you actually have - apologies if you did, my eyes are a little blurry this late
I'll have another look at work. $130 is too much to pay for this old junk. No offence meant - my fave home PC is exactly the same age...