I have done business with Tweety's before. I looked on their site but didn't see anything. It may be there though. I could have used a wrong search term. I will say Tweety's isn't my usual first choice. I live in Texas and have to pay sales tax on Tweety's purchases.
I thought I was going on a long trip in a couple weeks, thus prepping the camper. But the dirt track races in Charlotte will be there next year. My credit card is smoking from the jack issue and the 5th wheel in the shop after a tire blowout.
edit add: I just looked again and yes Tweety's has the 4220 jack. $450.