No sorry while I'm unsure about the machine crudentials and some aspects of the build 5K is not over the top really when have to take into consideration this is a business and he has to provide warranty and all that goes with running a business.
Yes sorry i ment 2k for a home build of that,
Also don't get why you say needs wider rails because width doesn't really come into it provided they are suitable for the job
I just presumed, thats why i asked him what he generally wants it for, hobby or work or industrial output...