Driving is fine, both places have FREE parking. I always drive when I go to Vegas, it's better than cab fare, etc. You may want to consider staying at the Orleans, it's a very nice place. Not quite as nice as MGM, but very nice, and it would be more convenient for you.
The total cost for painting an interior will run about $1.02 per square foot (about $390 for the for a 12x12 room) of wall space being painted.
Whatever the reason, painting continues to be one of the most popular contracted jobs in the trades. With the cost of paint rising due to regulated changes in paint formulas, the average cost to paint the interior of a home is now between $445 and $1503.