I have similar boat but a 3-cabin version. PO had installed a walk-on bowsprit with an eye for gennaker.
Since this season was such a big step-up in boat size for us, haven't yet flown the gennaker, but I would assume it fits well with the bowsprit.
I have always routed the sheets in my previous boat through blocks in stern corners, often these blocks have been attached to stern cleats. I would assume using midship cleats would result in suboptimal sheeting angle?
BR,
Tommi