I know this has been done before, but wanted to show off what i did today.
I bought these off amazon
Apexstone 45N/10lb 10 inch
Gas strut
Did a rough install with sheet metal screws
Once the placement was correct, i welded the brackets to the engine lid and firewall
The 10 lbs strut is just enough to slow down the engine lid and its still very easy to close the engine lid. Short video of it in action
Video