Car - bus rollover wash system

we are a saudi arabian company specializing in car - bus rollover wash system at the present time we are to buy 10 bus rollover type wash system fully automatic for public and touristic buses 3 brushes and if you do drive through bus wash system with 5 brushes.
please send us your best prices catalogs and specifications with delivery time as the 10 machines will be bought within 3 month period one after the other as we will need tow techs to fly over to install them.
we also need a suitable wa