What would folks consider the best generalised turnkey [en.wikipedia.org
...] project plan that has worked for them, to build links on an ongoing basis. And how is that broken down, say over, months 1 thru 6, to give a snapshot, in terms of the brief, skills, relative % dollars and where the techniques will be applied.
The focus of the question is on link acquisition and optimisation of links and content for links, and assumes that sites have a sufficiently competitive value proposition to be linked to on it's current site, amongst an audience with average to good reputation, and quality websites.
The other assumption is that the marketing department of the site owners, provide a brief on the ambit of the target audience, spelling out the value proposition and where they can be researched and identified online . They can be communicated with by phone and email, and might not often follow through with commitments to link - so good quality follow may be required.
The other assumption is that the links will given freely, and not necessarily contain popularised anchor text, rather more natural links.
One thing, the plan must respect the building of reputation amongst it's target. Complaints are a big thumbs down, if received by the site-owner.
And Google's apparent new policies are a big thing to respect also.
Scenarios may be different, so let's play with an e-commerce site that sells widgets in a popular vertical and try a starting point, that a site owner could adapt to, and let's say an initial budget of $1000 to prove concept, then $5000 that could scale up organically, if required , during the initial phase.