I am interested in getting a cost range estimate for installing electric ridge vent motors in Plant Pathology Greenhouse rooms B124, B126, B127, and B131. These rooms all currently have chain pulley opening and closing mechanisms. I salvaged all of the roof vent motors and controllers from the Forestry Greenhouse project last summer so we will not need to purchase those, just get them installed. If it is possible to get an estimate and complete the project by the end of June it would be preferable but not 100% necessary. Thank you!