This is the least expensive, new, z97 board that actually HAS heatsinks on the VRM components, which you will definitely want with that i7 especially if you do any overclocking. It also happens to be black and red.
https://www.ebay.com/itm/Gigabyte-GA-Z97X-SLI-LGA-1150-Intel-Z97-ATX-Intel-Motherboard/262774205578?epid=216188018&hash=item3d2e902c8a:g:l2AAAOSw5HJXKGrd
Anything else of decent quality that's still around will all be NOS (New old stock) and are generally in the 180 dollar and up category. Most those used to be in the 120-150 dollar category but since they are End of life, they can pretty much ask whatever they want for them now since there is very little supply, no new incoming stock and still people looking for or needing them.
If you don't require it to be capable of overclocking you can always use an H97 board, but they are in just as short of supply as the Z97 and not much, if any cheaper.