Ballast hose from ski locker to bow?

I have a 99 MariStar 210 I am trying hook up ballast in. I have two sacs under the seats in the bow and one in the ski locker I want to hook together to fill as one.

Any suggestions as to how to run the fill and vent lines? Anyone been down this road before?

Interested to find out - planning on doing the same thing in my Maristar 230 this winter. I was planning on doing this...

* running the fill into top fill of of the port sac venting it with the other top fitting.

* Connecting bottom fitting to bottom fitting of starboard sac, and T-ing it to go to top of ski locker, no valves

* Venting starboard sac from top as well

* Venting ski locker sac (probably connect them all to one thru-hull with swing check valves in place)

* Putting drain (rule pump) on bottom fiting of ski locker and running the hose up above the top of both bow sacs (to enable it all to stay full, not want to drain from pressure)

I was planning on using an extra Jabsco pump to fill it, and an extra rule lying around to drain the whole thing.

Thoughts?