Welcome to the Q&A Forum

Hi I wonder if anyone could help me on a canonical link query/indexing issue. I have given an overview, intended solution and question below. Any advice on this query will be much appreciated. Overview: I have a client who has a .com domain that includes blog content intended for the US market using the correct lang tags. The client also has a .co.uk site without a blog but looking at creating one. As the target keywords and content are relevant across both UK and US markets and not to duplicate work the client has asked would it be worthwhile centralising the blog or provide any other efficient blog site structure recommendations. Suggested solution: As the domain authority (DA) on the .com/.co.uk sites are in the 60+ it would risky moving domains/subdomain at this stage and would be a waste not to utilise the DAs that have built up on both sites. I have suggested they keep both sites and share the same content between them using a content curated WP plugin and using the 'canonical link' to reference the original source (US or UK) - so not to get duplicate content issues. My question: Let's say I'm a potential customer in the UK and i'm searching using a keyword phrase that the content that answers my query is on both the UK and US site although the US content is the original source.
Will the US or UK version blog appear in UK SERPs? My gut is the UK blog will as Google will try and serve me the most appropriate version of the content and as I'm in the UK it will be this version, even though I have identified the US source using the canonical link?