Setting up inside even a similar-but-not-the-same environment is horrible.  My experience:  dependent packages the need to be compiled on their environment, undocumented network lags form internal servers&#x2F;services, lack of sysadmin competency.<p>Perhaps an option, to keep this as a SaaS, is to offer a DNS mapping to your own server (give them access to, if they need root&#x2F;admin access, seems so), but it is your environment set up as you need.<p>Pricing:  Depends on what you&#x27;re doing.  Jumping from $9 to $10000s which is what this sounds like sounds a big step.  Re-write pricing on a per-user per-month &#x2F; per-usage instance perhaps?  As they&#x27;re enterprise, that&#x27;s where your growth is: scale.