Sure that's fine for the M1918

You accidentally listed the T13 as "Ford Ford"
https://www.imcdb.org/vehicle_164869-Ford-GP-T14-37mm-GMC-1941.html

Other than that, everything looks good.
A few more things:

another Ford T16, don't know how it got under Vickers
https://www.imcdb.org/vehicle_554444-Vickers-Armstrongs-T-16.html

Aveling-Barford Universal Carrier
https://www.imcdb.org/vehicle_766809-Vickers-Armstrongs-T-16-1943.html
https://www.imcdb.org/vehicle_1793147-Vickers-Universal-Carrier-1940.html

Vickers Defence AS-90
https://www.imcdb.org/vehicle_221380-Buick-M18--Hellcat-.html

Buick M39 AUV, move "AUV" to the name please
https://www.imcdb.org/vehicle_578306-Buick-M39.html

Uralvagonzavod T-34/85 as Krupp Pz.Kpfw.IV
https://www.imcdb.org/vehicle_326757-Custom-Made-PzKpfwIV-Replica.html

Made for Movie M1 Abrams
https://www.imcdb.org/vehicle_269474-Custom-Made-Tank.html

I think that rather than 'custom made', these should be listed as ZiS-5V Replicas?
https://www.imcdb.org/vehicles.php?make=Custom+Made&model=ZiS-5V

GAZ 69 AM as Stoewer Typ 40
https://www.imcdb.org/vehicle_1284238-Custom-Made-Stoewer-Typ-40.html

International Harvester TD-9 - Additional info: Dragon-I improvised armored vehicle
https://www.imcdb.org/vehicle_1066181-Custom-Made.html