Okuma Cold Water questions (leadcore) / riggers / dipsys)

[jigstick]

Im in the process of switching out my Diawa and Magda reels for the Okuma Coldwater ones.

 

Any idea if a Coldwater 303 will fit 5 colors of 15lb leadcore on it?  with 15# mono backing?  will be used for walleye on lake erie so I don't need 1000ft of total line on the reel.  Just enough backing to get my inline planar boards away from the boat.  I usually run a length of 150ft to the boards.

 

So if my math is right, I need a minimum of 250ft of backing and 150ft of leadcore (5 colors).  that's 400ft of line.

 

I think the Coldwater 303 will hold 510yds of 15lb mono.

 

Do you guys think Ill have enough room?