Does this sentence sound good or should I change it up?

Question

They expected a grandeur lifestyle filled with endless opportunities to be successful and happy.

Answer 1

You need to change it. The word "grandeur" is a noun, and you've used it as an adjective modifying "lifestyle."

http://www.merriam-webster.com/dictionary/grandeur

Find an adjective that expresses a similar idea.

Answer 2

Would it just be better if i said:
They expected a lifestyle filled with endless opportunities to be successful and happy.

Answer 3

You could do it that way. Or you could use "grandiose" (an adjective) to modify "lifestyle."