Did Apollyon NW solo, got to final floor before timing out; only got 10 coins (heard of runs with 40-50 ish?).
On a solo run you're skipping everything til the 4th floor; depending on time remaining you can kill the 5 wyverns for 10 coins total, and the 3 behemoths on 5F drop 5-6, as does KB. You're looking at 30~35 coins, but don't expect to hit that every run without a lot of experience and some luck with the portals.
An experienced duo can do all that and kill all the bosses besides the turtle on the way up for 20~25 coins each; if you're still new to it, this is a great way to practice while still bringing in a decent amount of ABCs. More AF+1 is always nice, too.
RDM can attain an almost static 50% reduction to recast time, SCH can over shoot this for a total of 60% reduction under Alacrity (provided you are wearing loafers and keeping dark weather on yourself)
MACC is a joke, any job with access to mage gear can hit close the MACC cap on legion mobs, which is why my BRD/RDM can land slow/para/blind despite having only 150 skill (from /RDM.)