I have a bobcat that i swapped a Kubota V1305 into. Now im trying to add a cab heater. There are no ports in the water pump but i di have 2 on the gooseneck. One above and one below the thermostat, ON the block just above the drain valve there is a large set screw. the fitting above the stat is only about 1/4 inch thread but i think i can drill it out and tap it. the allen cap in the block is huge, like 1 inch no idea if i can ever find an adaptor . SO is it worth going through all that or would i get the same results if i just tap into both the upper and lower radiator hoses?