Making The New L88 Hood Fit

We bought the cheapest L88 long hood on the internet and made it fit.  When i searched all over the internet to find a video to show me how to do this, I couldn't find anything.  So, in my usual manner, I just started doing what makes since to me.  This is the hood we decided to buy:
https://socalvettes.com/products/1973... .  
Must blog sits that I read said to get ether a hood from ACI
https://www.acivette.com/
or one from Glastek
http://glasstek.com/products/chevrole...
The only problem I had with ACI or Glasstek was the shipping was more than I could do so SoCalVettes price plus shipping was about $300 cheaper than anything else out there.