Not sure how that could work, as I thought quickconnects were designed to interlock to the male/female other side quick connect?https://www.demon-tweeks.co.uk/motorsport/dry-break-connectors/jiffy-tite-quick-connect-dry-break-fittings-2
Either way, it wouldnt work with that rib, the best bet would be to get an engineering shop to remove the nipple, drill out the hole a little and weld in an AN fitting, something like this possibly https://www.ebay.co.uk/itm/8-3-4-UNF-AN8-08-FEMALE-Aluminium-Weld-Fitting-Round-Base-/362001905056?clk_rvr_id=1476829822506&utm_medium=cpc&utm_source=twenga&utm_campaign=twenga&utm_param=eyJlcyI6MCwicyI6OTcyMDIzNywiY2kiOiIwMzM0ZGYyZGI2Y2NjZGEyZTk4OTFlOWM2ZDU2MzJiZSIsImkiOiIzNjIwMDE5MDUwNTYiLCJ0cyI6MTUyMTg5ODkxMiwidiI6Mywic28iOjE1MDAsImMiOjEwNzA2M30%3D&rmvSB=true