i use a harbor freight trans jack that i've had forever
[URL]https://www.harborfreight.com/450-lb-low-lift-transmission-jack-61232.html[/URL]
i'm not sure if you have HF up there in America's hat but i'm sure you can find an equivalent. i bought that stupid thing years and years ago and admittedly it has become a super useful piece of equipment in the shop. it's a great "third hand" for gas tanks, suspension, rear ends, etc.
on install: if you're going to use sealant, put it on the gasket and then knock the gasket onto the housing. don't pinch your fingers between the pig and the housing. that's about it.