And so many Options!!!! believe it or not I am actually facing a very semilar build. How large is your basement?
[IMG]file:///C:/Users/Will/AppData/Local/Temp/moz-screenshot-1.png[/IMG]It is not letting me paste the pic for some reason so let me try to give you a couple of Ideas
I would Locate the wet Bar behind where the furnace and water heater are placing the sink close to that wall. Run the drain down and through that wall then along the walls till I connected with the tub Drain. It can either be hidden in the wall or exposed if it is not a finished area. If I was doing the Job I would take the time to hide it in the wall but that is just me. Water I would either run trough the Ceiling and down through the wall or trough the walls around the rooms... What would make that decision for me... Do you have 3/4 inch Pipe near there? I use 3/4 to branch off of when ever I can for pressure.
Sump Pump... Lets Be Honest... They are ugly and sometimes Noisy... So what can we do? WHAT CAN WE DO???? How about this!!! Build a Frame arouns the Sump Pump and extend the frame up to the Ceiling.... Leave the bottom open enough that if a Plumber ever needs to replace the pump he can get in and Lift it out... 3 feet should be enough....hmmmmm 5 foot left over... How about a Wine rack on the top and in between a nice Glass Holder (My wine rack and Glass holders are going to be made out of Copper Pipe
Depending on How Large the area is would depend on the Shape of the bar... If it is just going to be a basic Straight Bar and you have the room Leave it bback from the Edge of the Wall a little and this will Leave a nice area for A flat screen on the Wall and some furniture. A great program to play with for design is Sketchup by google