This is an alternative that works quite well:
https://www.amazon.com/dp/B01BJ4MXQY...lig_dp_it&th=1
Basically a pony bottle that you can put air in at a very high PSI and then send a blast to tube to pop the tire into place. There are pumps that do this but if you already own a good pump this is a $65 add-on.