Have you contacted BAL? I checked Amazon and their banded bearings "by INA" were as expensive as the ones linked at Grainger. Go to yard sales and look for scissor jacks? There are Scissors Jacks at Amazon that don't cost any more than the bearing! Unless the mfr cheaped out and didn't use a thrust bearing.
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB