Amazon Seller Central Setup & 5 FBA Product Listings (UK Marketplace)

We're a UK-based, family-run manufacturer with an established Shopify store and our own workshop, looking to expand onto Amazon UK. We want to start with 5 products via Fulfilled by Amazon (FBA), then grow the catalogue from there if the launch goes well... (Budget: £10 - £15 GBP, Jobs: Amazon, Amazon Ads, Amazon FBA, Internet Marketing, Keyword Research, Link Building, Marketing, SEO)