Personally I think that Connor summarised nicely the process and made the valid point that there are two distinctive areas to creating a site, firstly the design/conceptual stage and then the creation and further modification of the static site itself.

The lack of a Roadmap of sorts in regards to the above is down to the fact there isn't a "one size fits all" in the design or conceptual stage of putting together a site, as a result the outcome varies greatly. Despite this the actual process as per Connor's post being a nice summary of the steps that can be roughly taken almost irrespectively of the design/conceptual stage.

This however does not provide you with the necessary knowledge, connections or experience that are required for further improving as well as overcoming obstacles that you may encounter during the further running of your site. Such knowledge can be passed on or gained over time, however attempting to write an article or tutorial in a form that could be easily readable and digestible would sacrifice its usefulness. As such a resource could not cover all areas in great depth , additional to that the dynamic state of the industry would require such a resource to be modified and maintained on such a regular basis it could be difficult to manage.

This in itself presents what I would consider the dilemma, firstly to incentivise the writing or such a resource (consider competitive forces), secondly maintaining the resource and also evaluating its usefulness to make ongoing changes and finally ensuring that it cannot be used as a "one size fits all" in terms of allow the user room to ask questions and research/trial and error for themselves.

This is somewhat a gripe at tutorial article writers considering a roadmap in its completeness as described could and would provide users an answer however it potentially as often is the case results in more problems caused by the lack of "learning something".

I would agree with Connor that the one thing to do more than any other is contact a consultant first, and I would add to that with do your homework, in-depth and over a period of time, don't (for use of a better term) jump into bed with the first solution you find.