Actually, he wouldn't have to invent one;
a hand pump would work just fine.
moparzrule, you MUST flush the galleys.
Remember the oil pan full of bearing?
Well, that's absolutely not all of it.
Right now(hopefully you haven't reassembled yet)
your engine is polluted with bearing material.
This diagram should help you for clearing it out.
(You can get a better pic by Googling, Dodge 2.2 oil galleys)
By just installing a replacement set of bearings, you're asking for trouble.
Not only that, you're risking damage to other vital engine components.
The call is yours to make,
but I know theres only one RIGHT way to do this.
Whatever you choose to do, I wish you the best my friend.