I did cut out the new countertop just like the original. I bought a nice pice of prefabricated countertop with backspalsh for less than 50 dollars.
The new countertop was not as wide as original so I had to get a little creative with the backsplash.
HD sold the matching laminate in small pieces to trim up the cut areas.
I am making a dining table using matching laminate. very affordable.
Smily