Ian, I've been through this loop recently, and ts often useful to know some numbers, for perspective.
Obviously your machine will have different dimensions, but just to give a ball-park idea.
Our Sapphire Pro measures 248cm end to end, with the 'long bit' measuring 165m, provided the cranks are vertical (the S&S is just in front of the pilots BB). Short bit 83cm. All measurements with wheels / mudguards racks.
So, if you split in the middle, its possible to have 248cm / 2 = 124 cms pieces, saving 41cms.
To achieve this length, you may need to also remove the stoker bars, since on our bike, they protrude over the half way point, making the front section longer than 124cms. Also unshipping the timing chain, as discussed above.
Hope that helps your decision making! (I spent hours discussing this with Ruth!)