Most of the time 15k each Smob run (Smob = 15-20minutes depending on crew) Most of the time at least 35k from each Smeb run (Smeb= 30mins-1 hour depending on crew) i got the time amount from my crews sweatdrop
Personally, I get about 17k from SMOB (idk if it's because of my Integ)
I don't SMEB much, but I thought the money amount was around 40k? surprised
If you're looking at it in "what's the quickest way to earn money" - you probably want anything in Shallow Seas over repeated runs of Papa Saw.
SMEB is obviously quicker, but you need to waste a little of your income on Amps, and with the way the marketplace is, it's probably more worth it to SMOB.