Step 1
Organize an organ committee - not too large. Uneven numbers work well for such a committee. A small organ committee proves more effective with organ briefings, trips and so forth. Understand the chain of command in your church so you know who is the final decision maker.
Step 2
Appoint your committee members with great care. You want sound judgment, diverse professions, team members and go getters. You need to trust them and be able to communicate with them. Educate your committee on pipe and digital organs. Bring books and videos, listen to recordings and visit other churches with organs.
Step 3
Create a time line detailing a plan of when the church will purchase its organ. The time line includes fund raising, briefings, visits to churches and/or showrooms with organs. Run the committee meetings like a synchronized team with an agenda and time limits--keep them focused on the objective.
Step 4
Figure out what kind of organ the church needs and why. Include its visual effect in the church, style, musical tone, physical size, organ's lifespan and required space. Set the budget! These are the key factors in deciding between a pipe organ and a digital organ. Note: pipe organs need a structural after budget of 5% per year!
Step 5
Invite some organ builders and sales people to your committee meeting to be briefed and educated on all the details about the organs. Discuss qualities and materials as well as technology versus quantity of stops, pipes etcetera. Go over workmanship and servicing of organs.
Step 6
Collect three bids from three organ companies you think are suitable. Decide which bid is the best for the church and congregation.