Hiya, I would advise you look at potential vendors such as Cambium Networks, Aruba, Cisco Meraki etc. Also whether you are replacing the switching or just the wifi? Also is the existing data cabling sufficient? Are additional Cat6a runs or replacement fibre needed etc (OM4)? Choose one vendor depending on features, reviews and cost etc. For info - Cambium Networks CnMaestro Essentials (cloud management) has no licensing so can reduce install and ongoing costs drastically. Choose three suppliers and ask for site survey. (Some suppliers charge for this as its very time consuming) This should provide you with three reports including full design details including any infrastructure cabling requirements (to replace existing or additional), full kit list list and quotation from each. Then you can make a decision. :-) Good Luck.