The wal mart in East Stroudsburg, PA has them for $25. I bought a 2.5 gal jug of pennzoil long life back in about 2003-2004, I havent seen them since then!
When ever I would do a Ford PSD, I would use one of those plus 5 quart bottles. Its not that difficult. Biggest danger is letting it out at a faster rate than the funnel can flow, since it has that gigantic cap.
Then I would put the empty bottle in my trunk and take it home. I use them as used oil containers.
For my 02 duramax, and my dad's 06, 2.5 gal is exactly what it takes for a change, so you just dump it in (slowly, of course). I also like the 2.5 gal jugs for bringing back old oil.