Finally got the Blazer tank in!!!
It didn't take too long to install it. Along with the straps I purchased the stock padding to go in between the straps and tank and the pinch points on top.
After I installed the tank I removed the old tank and it hit me... I can use the original filler neck with the vent tube. I would have taken the little breather off and connected it but I didn't have the right hose with me (30 miles to nearest parts store). I think I will be using a cool cap in the fender. I just feel better putting a cap in the fender rather than a bed fill...I can't seen to find the picture of an installed one on the web. I guess Ill have to do it and bring the camera...BTW the fuel line will be more secure than it shows to be in the pics b4 I startr cruising around!!!