right im going insane here, cant stand outside no more with a broomstick tryna align my dish ... latest attempts tonite ... stand on my black bin and try and move it in the pourin rain i need a new bigger stronger dish ... its boiled down to these 2 but i dont know the difference other than 2cm and price so can someone help me out here and in the near future i will be getting a motor too so baring that in mind these are the 2 dishes

Triax TD78 78cm Satellite Dish with Pole Mount Fittings - £48.95
OR
80cm Orbital Solid Dish - £42

do any of these come with wall mount/fittings/screws/nails etc

also I will be getting this from the sponsor.