Really is a killer idea, too bad it isn’t quite there yet.
I printed the 360 degree shroud (https://www.thingiverse.com/thing:2240359) and it fits way better than the 180. More than enough clearance from the heater block. Printed 6 prints now without the silicon sock ( just haven’t put it on yet) and no signs of the Petg melting or deforming. BL touch is next.