I lost a lot of my mech files to a hard-drive failure, but I have managed to replace the files from 3058, 3060 and partially from 3075 (no Age of War designs).
So, scanning trough what I have managed to replace gives the following non-celestial C3i mechs:
Battle Cobra BTL-C-2OA 40 1113 RS3058Uu CW
Battle Cobra BTL-C-2OB 40 895 RS3058Uu CW
Battle Cobra BTL-C-2OC 40 726 RS3058Uu CW
Battle Cobra BTL-C-2OD 40 1221 RS3058Uu Jihad
Battle Cobra BTL-C-2OE 40 840 RS3058Uu Jihad
Battle Cobra BTL-C-2OF 40 1300 RS3058Uu Jihad
Battle Cobra BTL-C-2OPrime 40 944 RS3058Uu CW
Initiate INI-04 40 901 RS3060u Jihad
Mongoose II MON-266 40 1085 RS3075u CW
Buccaneer BCN-5W 55 1393 RS3060u Jihad
Buccaneer BCN-6W 55 1121 RS3060u Jihad
Lineholder KW2-LHW 55 1484 RS3058Uu CW
Helios HEL-6X 60 1761 RS3060u Jihad
Avatar AV1-OE 70 1563 RS3058Uu CW
Excalibur EXC-D1 70 1949 RS3058Uu CW
Shootist ST-8C 70 1528 RS3058Uu CW
Shootist ST-9C 70 1727 RS3058Uu CW
Dragon Fire DGR-6FC 75 1858 RS3058Uu CW
Toyama TYM-1B 75 1788 RS3060u Jihad
Toyama TYM-1C 75 1727 RS3060u Jihad
Spartan SPT-N3 80 1631 RS3058Uu CW
Emperor EMP-6M 90 2090 RS3058Uu Jihad
Viking VKG-3W 90 1778 RS3060u Jihad
Remember that is a partial list and is missing 3050, 3055, 3067, 3075AoW and 3085 mechs.