Block Making Machine

we would like to your competitive offer for such project (semi- automatic plant) with the following specifications:
product name: hollow blocks
dimension of blocks(3 sizes):
1- 40*20*20
2- 40*15*20
3- 40*10*20
capacity per 8 hours: 14000 block.
also, we would like from you to clarify of the following:
1- number of labors need to run the plant.
2- frequency of maintenance required for the plant.
3- have you ever install such factory in saudi arabia?
your quick response is highly appr