If you already have Directv you can order a Temporary Installation Kit.
Temporary Installation Kit
The Kit includes:
DIRECTV 18" Standard Dish
Tripod Mount
50 Ft. Coax Cable
Compass/Level
Set up Instructions Sheet and DVD
Offer for existing residential customers only. No programming commitment needed. Requires self-installation
The price is only 49.95.
Just what you need for your Monty.
Jack