Have you used the Unifence yet? Most people who use one for a while will realize how many ways it can be used, and won't part with it after that. High or low fence capability, long or short fence capability. Easy to flip for opposite side of the blade cutting, etc. A fence accessory extrusion is being sold by Peachtree Woodworking called a Uni-T-Fence that is square and has T slots on the top and working side, and an HDPE rub strip built into it. It slips in place and adjusts to any length, just like the original Unifence extrusion. They also sell a 16" long version of this to use as a short fence or work stop when cutting pieces to length using the miter gauge. I switch fences often, whenever the original, or the Peachtree long or short versions will do the job best.
A Unifence came on the Unisaw that I bought, and I too had mixed emotions at first, because the saw at work has a Biesmeyer. After using the Unifence for a while, I stated trying to get the Biesmeyer at work replaced with a Unifence. Their fence is about at end of life anyway. If a new Unifence was still available new, I could probably get them to buy one. Unfortunately it is not.
I have a very small shop and placed the fence extension end of my Unisaw against one wall, with the passage door on the operator side of the saw, and the double doors on the out feed side of the saw. My work isles now run around the other end of the saw in a U fashion. My jointer sits next to this end of the saw too. I don't break up sheet stock on my saw, since there isn't enough room in the shop for this. I do it on a folding cutting table outside and trim the pieces to exact size inside on the Unisaw. I thought about cutting the Unifence rail and extension table down, but couldn't bring myself to do it. I kept thinking that my next shop would be bigger and I would hate myself if I had cut it down. Sadly, at my age now, I don't see me living long enough to have another shop. If you do cut the Unifence rail, I might be interested in buying the left over piece. If you decide to do with a different brand of fence, the Unifence is selling used for pretty good prices, so you might recover most of your investment in the new fence. Please try the Unifence for a while though. I've got a feeling that you won't be replacing it.
Charley