Welcome to the Q&A Forum

No answers, but I found the answer to this offline. Thought I would note it here for those of you who are interested. 1. In terms of Amazon cloud hosting they have datacentres in specific locations so there is (probably) no worry about losing any gains from localised hosting. Assuming they have a datacentre in the region you need. 2. Related is something I have just learned about is Amazon Cloud Front, a content distribution network in which your content is delivered to a location near to where it is requested from. The main advantage is low latency high speed content delivery but there may be SEO localisation implications

I think if you are having 10 links to external sites on the one site if they are all related companies it should not be that bad. I would aim to have internal links on the main website first, and then externals coming second but. Other areas such as varied anchors and dup content you seem to be on top of already But in the end of the day the more links on page you have the less value internal pages will have.