It looks like where you are caught is between changing out the guides for scrolling or trying the current guides and thrust. Looking at the guides there is certainly opportunity to swap out a couple of pieces of hardwood for scrolling. I am looking at a picture of the guides not installed on the machine so access could be dissuading factor.
I see that their cool block solution is a set of four holders with typical round cool block stock being held in them. The hefty price tag is for the holders, not the rods I imagine. Using your current guides as a template I would think a set of hardwood blocks could be made in short order. Swaping them in and out may be another story.
I would hold off on selling your smaller saw for a month or two. I sold mine right away and then bought a used (not as nice) saw to replace it a few months later. The extra sacrifice in floor space was made up for by the ability of me to get things done more quickly in my limited shop time. Maybe sell the 14" and pick up a small 10" Craftsman/Rikon. Not near the saw but, small enough to lug in and out of the way. A usable scroll saw takes up a surprising amount of room so if you don't have any fretwork requirements a small bandsaw would be my choice.
Just one more fool's opinion ;-)
"A hen is only an egg's way of making another egg".
– Samuel Butler