Since similar to SM-T810 I could also build for SM-T710 /e/OS-R-1.15
However I cannot test since I don’t have this device. I assume however that it should work.
Please feel free to test 
https://www.androidfilehost.com/?fid=10620683726822076239
Please see sources and install instructions including recovery here:
https://forum.xda-developers.com/t/unofficial-rom-beta-lineageos-18-1-for-sm-t710-sept-12-2023.4430339/
Use it at you own risk!
Please support the developer(s)!