Took me the better part of a day to do mine, but I was doing lots of cleaning and other minor mods while I had the pump off - plus I tend to go very slowly in unfamiliar territory! :-laf
I didn't need any unusual swivels, just s pair of extensions on my ratchet to reach in behind the pump close to the block for the nuts there.
Do yourself a favor, and paint a dab of white paint on the nose of the key on the new pump, makes it easier to see and align with the gear when installing the pump, plus easier to verify the key still sits square in it's groove after installing the pump.
After removing the rear engine hoisting loop, leave it off, and reinstall the bolts with appropriate thickness washers - the bolts secure the intake plate, and with that loop removed, #6 injector is FAR more accessible. The bolt hole spacing on the hoist loop is close to what is needed to thread pulling bolts into the VP-44 drive gear, and a few guys have opened the holes and then used the loop as the puller with the appropriate bolts, which I think were the bolts holding down the air horn, with washers/spacers as required.
I just went ahead and bought the puller from II same time I ordered my rebuilt VP-44 - but at $25 or so, it would make more sense to just use some scrap bar stock and make your own.
Good luck!