Fumoto valve and shop vac.
Thanks to whomever here gave me the idea as it worked.
DW used the vacume hose against a rubber washer against the oil dip stick tube while I removed the oil drain plug to replace with the Fumoto valve (F104n in my case 18mm-1.5 thread). I don't have a 5+ gal oil pan (or desire to wear oil) to drain into so needed the oil to stay in the engine pan during conversion. Now I simply hook the 3' 3/8ID PVC hose to the valve and drain controlled amounts into smaller containers (Wallmart drain - just kidding thats another post) and take to the Cummins/Onan/Spartain service center 6mi away.
1999 Newmar Mountain Aire MADP 4080, Cummins ISC 8.3L, Allison, Spartan MM IFS, Howard Power Center, Chev Trailblazer LTZ Towed w/ BlueOx rigging, Segway X2.