You say they are offering two 5 hp chillers and the ProRefrigeration guy is saying you need 32,000 just for fermentation. There are 12,000 btu/hr in 1 ton of refrigeration, meaning the ProRef guy said you needed just under 3 tons. On the other hand, in the HVAC world, 1 hp is about 1 ton but as you get colder, 1 hp gives you less capacity. So a 5 hp glycol chiller could give you anywhere from 2.5 to 3.5 tons, depending on the temperature range you are talking. So they may not be far off.
Give yourself an apples-to-apples comparison and ask for capacity in btu/hr at a specified glycol temperature and flowrate. Then you know whether its a good deal or not.