Give them to clients whole.
I remember getting a talk to at the marina one time by DFO as my clients were camped at sunny shores, as I cleaned them for them to cook up in camp....I said they are right there!!!! pointing to there rig still he was giving me grief....me personally bring them home and clean them at home carry the stuff down to the dock next day..
As for cooking never whole thats gross your cooking food with GUTS YUCK......
I use a recipe that is basically steaming it
Segment all crab put in big pot.
olive oil
1 cup of wine
2 tbsp grated ginger
2 tbsp garlic
any herb you like cilantro/dill/mrs dash etc
, couple squirts of lemon juice
pinch of S&P
these are just basic measurements if you dont like certain things add more or less you will tune into what you will like most
turn on high get it steaming good... shake in pot to rotate the crab takes about 10 mins dump into bowl and dig in get a nice banquette bread and soak up all the juices while eating
this way here you capturing all the crab flavor as when you boil you leech out alot of flavor ..give it a whirl its the only way im allowed to make it now LOL