Manned round-trip to Moho--success!

[jamis]

Moho was much, much harder to visit than I expected. It took me about three or four tries, but I finally got it--a round-trip with three kerbals, with a brief (and nearly tragic) landing to plant a flag and appreciate the scorched scenery.

The expeditionary ship was a core engine (with command module and nano-lander), capable of about 12k delta-v. I launched it first, then docked two tugs to it, bumping the final vessel to over 17k delta-v. When all was said and done, the ship returned home with just about 2k delta-v remaining.

In all, my Moho adventures have been a sad and often-tragic tale of underestimation. Even my lander, with its 2500 delta-v, was just barely adequate for the landing, orbit, and subsequent rendezvous. But it all came together!

Photo proof of my adventure:

http://imgur.com/a/kROyp

So, now I'm curious: what's the minimum delta-v you've spent on a round-trip to Moho, including landing? I feel like 15k is steep, but maybe that's just the price you pay to visit a rock so deep inside a gravity well.