For a US Army one you can go with the M48A5 kit again OOB and with the decals included in the kit.
There were some US Army vehicles with T97 tracks but they are few and you can buy the T97 track separately from TAKOM.
For variation you can add a dozer blade, Perfect Scale makes one for the Dragon kit but you will have no problem adding it to the TAKOM kit. Take in mind that the conversion requires you to remove a part off the lower front hull.
