For drive-on-right types, <kuid2:46162:25103378:1> Marias Pass Approach has a nice 40-mile stretch of US 2 (with a couple of interruptions) and a nice variety of side streets in Cut Bank and Shelby.
If it works in TRS19 and is an older route, then it'll work fine in TANE and may even look better if the old billboard trees are used. TRS19 turned many of them into printed cardboard stuck together in star-shapes.