Hi, wanting to do a motor swap in my sled. Sled is a 2010 mxz tnt 600 carb. Was thinking first to do a 800r swap into the sled, but now I'm think rs 600 motor. Or even doing a big bore 770 on the 600 rs motor. What do you think would be more reliable? Which is the easier install? Could I adapt my oil injection to the 600 rs motor? What would be needed to do either install?