header wrap? pro's / con's

Ok the starting the engine and looking for hot spots is quite out of the question. You know this is the Stroker motor/4 speed that I took out back April or May to put in that 318 an automatic that I played with all summer. The idea here is to get the headers all wrapped while the motors out and to be able to put the motor in with the headers. pretty much the only way that I've ever put headers in a body after that first try over 10 years ago of doing it with the motor in the car. I did that once never again! So anytime I put a motor in the car the headers must be 100% ready to go FIRST. So pretty much I won't be feeling the heat off of these headers for probably 3 months or more. And I need to get them wrapped so I can get the motor in so I can get the motor out of the middle of the second bay of my garage and finally have some room to think! Not only do I need those headers wrap so I can get that motor out of The Middle of the second bay of my garage but if you watching the forum I probably got about four other threads of all the different projects I got going on the car at once. Having that room in the garage is going to be great besides that I can't get to my snowmobiles unless I get that motor out of the way. Building a homemade engine/tranny stand in the middle of
the second bay of my garage with the sleds behind it wasn't a problem in April, BUT IT IS NOW! LOL
Now to your idea on not wrapping the hot part??? If we're trying to keep underhood temperatures down?? Odd how I'm thinking the complete opposite?

Seems to me the answer is to leave the first few inches unwrapped?
The next time the engine is hot, set the idle rpm up to around 2200,wait a few seconds, then start hunting around with the IR gun, and see where the pipe temp starts to drop. I my experience the hottest part is from about 1/2 inch past the flange to just after the first bend. Plus it'll be so much easier to wrap...those tight bends are... um............ painful.