Not mine but just in case of any interest to anyone else, the first one looks particuarly tidy....
https://www.driftworks.com/forum/threads/s14a-gearbox-for-sale.273277/
https://www.driftworks.com/forum/threads/sr20det-gearbox-apex-short-shifter-180sx-s14-s14a.273304/
https://www.driftworks.com/forum/threads/s14a-gearbox-for-sale.273277/
https://www.driftworks.com/forum/threads/sr20det-gearbox-apex-short-shifter-180sx-s14-s14a.273304/