[electricboats] Splitting 48V System Into Two Boxes?

I have a question about the feasibility of splitting up my 280 amp hour 48 V system into two aluminum battery boxes, that I will be custom making making. I am constrained on the space in my Newport 28 sailboat and it would be much easier and balance the way much better if I split the bank.. 

I am concerned, or the question is will the leads being longer from one system to the next, and the BMS leads being different links affect the current/reading of the BMS?? The leads going between the two boxes would be made out of double00 welding cable with properly crimped terminals while the leads going between the individual cells in the boxes will be copper busbars. 

Should all the BMS leads be the exact same length or can eight of them be 2 to 3 times as long as the other eight the boxes will be about 30 inches apart?

280ah new cells from Docan
250 amp BMS Daly
Delta Q charger + 150 watts solar
7.5 KW system from Foshan Green Motor 

thanks for any and all comments. 

Aaron 

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