Painting hanging in office

Hi, we need 6 paintings hung in our office. 3 are into a masonary wall and 3 in plasterboard. The painintings are five at 78x78 & one at 120 x90. At most they would weigh 4 kilos each. There is parking for contractors in the basesment of our building but it is limited to 15 minutes. It is probably best to get paid parking close by and inlcude this in your quote. We are located at level 12, 324 Queen Street. Brisbane. The earliest the project could be done would be starting from Monday next week - 25th July and it could be anyday monday-friday between 7am and 5 pm.