It starts off perfectly fine, and then you start explaining it. In any case, it is not the open area that has the ability to put up temporary tents or anything else. It is the people who are using it who are going to do that. (If the Google translator says that it isn't worth much.) There is a change that might make it clearer. Try:
What do you think?
For the purpose of building jumbo-sized structures, we have an open area on which to put up specialised, temporary tents, and we have our own mobile cranes with a lifting capacity of up to 100 tons.
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