Just rent a plane and an instructor who wouldn't mind a free lunch in addition to the normal fee. HND or VGT should both have what you need.
You can also call Signature and Atlantic LAS and ask them how much they charge. Their contact info is on their websites. Expect around $60.00 or some amount of $8.00 plus per gallon avgas in lieu of the ramp fee. Then get your $ worth by enjoying all the amenities you can. Have them give a van ride to have lunch somewhere. Be sure to tip the van driver and ramper a few bucks each. (after all, it IS vegas you know...) Don't expect good service on the cheap. Be sure to include a little flightseeing around Boulder and lower Lake Mead. Enjoy the trip.
westhawk