Thank's I am going to use a dipole and a yagi and if it won't work then I will try something else.
It's gonna work, and work well. As others have mentioned even "impossible" VHF paths can work. I easily work my buddy W5AOX 15 miles away from me on 2M and 440 simplex. Doesn't seem all that remarkable until you consider there's a 5000 foot high mountain between us.
Perfection is the enemy of good enough. Lots of hams would envy a dipole up 70 feet. Put it up and have a blast.