Metal Nozzle Kits for SV08/T300

I have only tried the 0.8 size nozzle so far, playing with clear PETG and vase mode has been great. The extra thickness makes the prints stand up well that were sagging and drooping with a 0.4 thickness. I have seen a couple of interrupted prints since switching to the large nozzle that are either due to overheating or overloading the power supply, not sure which. I hope that blowing a little extra air from below will solve the problem and I won't have to put in a bigger PSU.