You may be able to get credit from some of your suppliers by also offering to personally guarantee payments.Building credit is a process and you will probably want to get a DUNS account to verify what your business is like.

Suppliers and skilled repairmen are likely going to be harder to come by out there. 

Find a reputable contractor who has a bank account in the name of the business(no checks written to their personal name) and preferably credit at Home Depot and local suppliers. 

What does the Water supplier require to attach to their system.If water or soil ph does not affect copper it is the best and obviously most tested for durability and longevity in the interior or exterior.  

Often the meter has been removed due to prior abuse by the resident(breaking the lock) or many remove after a period of inactivityUsually, the supplier will install the meter as part of the connection process. 

Cabinets and granite are less at local suppliers and so is trim at builders stores. 

Dirt Cheap Signs and Witness Designs are also good suppliers.

Even after work has commenced, this was debated between the architect, electrician, and supplier, so how would I know that off the top of my head going into this?

(sorry for the pun) on your job-site.It's the same game as in the states, but played in the context of a different culture... which calls for different strategies in dealing with supplier relationships etc...

I've a supplier on the 500 block of Washington St.