Here you go.
My valve 1 1/4" gate valve just arrived today from Amazon. I had some 1 1/4" pipe and fittings I bought over the weekend. The 45 elbow directs the valve on back along the same space in the tank taken up by the footprint of the Sedra pump already.
I made the mistake of buying a threaded gate valve because I did not want to glue a $26 valve into place. Unfortunately the threads add close to 4" to the length, making it so very tight in the space, so that the skimmer, outflow and sedra pump are pressed into the corners to make it all fit. I have ordered a non threaded gate valve to retry it that way. I believe I do not need to glue anything as there is no pressure in the system. The 4" shrinkage of the outflow system will hopefully allow a little wiggle room. It looks like the recirc mod will change the footprint ever slightly when I have to swing the Sedra pump perpendicular to the skimmer. I would like to fit the skimmer in the sump so the parts do not have to touch the walls or baffles but it will be tight.