I am backing up Mr. Mills statement that a fryer is not the best option.
I don’t see the thermostat or heat exchangers on a deep fryer being optimal for boiling pasta. I am stating this due to my experience boiling out deep fryers during cleaning, it was like I could never maintain a soft boil, it was either boiling like crazy, or simmering with no median point. I am betting it is due to the design of the heat exchangers designed for very rapid recovery while frying.
When boiling, I would fill fryer baskets with ice and hang them over the vat so we wouldn’t have the caustic contents boil out over the edges and onto the floor.
Back in the day, I had a steel tank on our stove that covered 2 burners, and we used smaller baskets from a deep fryer to keep the pasta separated and an easy to drain before tossing it into a saute pan or on a plate for finishing. This was fresh pasta, so the cook times were very rapid. We would skim the water and replenish as needed. It sure beat a round pot with triangle shaped baskets.
Do you have a fabricator near you that can fabricate a stainless rectangle tank to fit your stove? Maybe add a petcock on one edge for easy draining?