These things tend to be very proprietary and this can negatively impact your prospects for favorable indexing or search enging placement. This is because most of the primary indexes are evolving a built in bias in favor of standards compliant html. Your best bet is to seek out a web developer who is knowledgeable in regards to the code issues involved and who will work with you to develop and present a clear, well designed presentation of your message. You probably would want to find somebody locally, but this may not be possible, nor is it necessary. Good web developers are used to working with clients all over the map.
Cost is usually a concern.
Costs for web sites can range from a few hundred dollars for a few simple pages to thousands, or even hundreds of thousands. So, for starters, you would probably be better served by contracting for development of a small but well designed site written in standards compliant code and enlarge it as time and resources allow. The issues related to content accessibility are a concern, and these could have legal implications. We understand and appreciate the issues involved and the importance of standards compliant code. But the fundamental issue is that few, if any, of the current crop of online web page authoring tools will generate clean code or standards compliant code.