I got the message that POR paints are not well thought of in the forum. that must be why it is not available around here.so moving on- I hope in the next month to get to the point of removing my doors to start cutting out and replacing some rusted spots in the lower corners like I have been on my rear fenders. and while I am in there my thinking is- it should be a good time to replace the window channels. is there anything extremely complicated in that task on a 61 model? thanks. Raymond