>Can I just throw more money at the problem so that I'm less stressed and offload more decisions to the builders?
Yes you can. It requires two things:
1) you need to hire a builder who has experience with commercial and/or industrial construction. Hire the same type of builder that you wanted to build a small dental clinic. Tell them explicitly that you want everything to build built with the same standards as their commercial clients. Even if they are well intentioned, you don't want to be the beta tester for a builder trying to expand in a new type of construction. Most of the work will also be done by subcontractors, so you want to hire someone with a list of contacts filled with companies who typically do high quality work for highly demanding client.
2) Hire a structural engineer and architect to check their work. If you can only hire one, the engineer is more important, a shitty finish material or bad interior lightning is easier to fix than a cracked foundation. The engineer needs to be on site to check the work at the critical moments to make sure it's done right (eg. before pouring concrete). He needs to have the authority to stop work if it's bad and/or force them to redo it. they also need to approve the plans and the product that will be installed. It is common practice in government contracts that the builder has to submit for approval the spec sheet for most of the products that they want to install.
Basically, you want to follow the same procedure a large city would use but skip some of the red tape that don't apply to you.
The contract is very important, I would recommend copying it from whatever is the most used one in your region for public work. It's probably gonna be a >200 page monster but it will cover every single situation you could possibly imagine and provide a fair way to resolve the situation.