I have the following for sale, from a fibre run which is no longer in use:
3x Generic Compatible 1000BASE-LX/LH SFP 1310nm 10km DOM Transceiver Module: https://www.fs.com/au/products/75326.html
3x Mini Gigabit Ethernet Media Converter, 1x 10/100/1000Base-T RJ45 to 1x 1000Base-X SFP Slot: https://www.fs.com/au/products/35333.html
Happy to sell only 2 of each also.