Southern Lehigh County might suit you. Emmaus, Macungie, maybe Allentown. Also upper Bucks County, Sellersville, Quakertown, Coopersburg. Upper Montgomery County, Red Hill, Pennsburg, East Greenville. All of these areas fit your travel requirements and you should be able to find something affordable, maybe. Good luck!

All of those about an hour and a half out of Wilmington, DE.