TTI headers ready to go in....any advice?

OK...I got the motor in today. I think the next step should be the TTI header install. Does anybody have any advice on the steps to take. I did not bolt the motor down because it looks like I will have to raise it to install the headers.

This is a 68 Barracuda. Which side should I do first? I guess my plan was to raise the motor, slide the header from the top down, hold them off the the side (somehow) Bolt the motor down and the install the header bolts. My headers have a removeable tube on the drivers side. One of the primary reasons I went with the TTI's is because I heard they were the easiest to install. Looking at it briefly tonight before I quit, nothing looked easy about it.