Unfortunately, I do not think this is the right place to get an accurate answer as we are real estate salesperson, not so much of a construction consultant. you may direct this question to appropriate professional.
From what I do know, there are 2 main types of lifts, traction and hydraulic lifts, and in this case if you are looking for lift to serve up to 9 floors, you are unlikely going to go for hydraulic lifts. The lift size and existing building for lift installation can also make a difference to the lift installation costs.
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