Wanting to know the best way to get a Business Class upgrade or ticket on EL AL. I'm not a Matmid member yet but can Use AMEX points or perhaps some other points.

Would I be best to Buy the right category ticket and then buy the upgrade with points. I saw somewhere that I could use 130,000 Delta miles outright to buy a business class ticket on EL AL. What is the best way to do this.

Thanks,