From Columbus OH we always run US-33 over to US-127. North about 10 miles thru Van Wert, OH and catch US-30 to Fort Wayne. Much faster than following US-33 to Fort Wayne.
If you search the Good Sam trip planner you will find camp ground all along US-33. There is the Johnny Appleseed camp ground run by the City of Fort Wayne for about $18 a night but not sure when it will close for season. There are camp grounds at Indian Lake in Lakeview OH, by I-75 at Wapakoneta OH (Neil Armstrong Space Museum) and Van Wert OH area. If your just stopping for a night is there something special you want?
2012 Sundance 3100RB w/Reese Goose Box
2004 Ford F350 6.0 L PSD, CC, DRW, long bed, B&W drop ball hitch, Firestone Ride-rite air bags.