Just on face value (it's Woo) with no other integrations, how hard would it be to put a site like this over to Shopify?
It's a workwear site similar to this one: industrial workwear.
Is it a case of just getting a theme sorted? or are there any key features available on Woo that aren't with Shopify worth noting?
No, it's not difficult to move your site to Shopify.
Basically, you can perform migration from Woo to Shopify directly on the website: litextension.com. They provide an automated data migration that help you transfer all your important data such as customers, orders, products and other related entities from your source site to Shopify with a high level of security and accuracy. You can perform it by yourself or choose the All-in-One migration service if you don’t have time to run the migration process on your own. With the A to Z service, their experts will take care of the whole job from the beginning to the end of the process. You can look up the full list of what they can migrate from Woo to Shopify in the link above.
Hope that I can help. Have a nice day.
Greetings of the day!
You can also try the Cart2Cart tool and get your current WooCommerce site transferred to Shopify in a totally automated way. It has been intentionally developed to help users perform eCommerce migration with their minimal involvement in the process. You can specify what data types (products, product categories, manufacturers, customers, orders, coupons, etc.) you want to transfer to Shopify just by ticking the appropriate boxes of the migration wizard. Besides, you can improve your migration result even more with the help of the additional migration options like Migrate customers groups into customer tags, preserve order IDs on new Shopify store, create 301 redirects after migration, etc.
Note that the Demo Migration is available absolutely for free to see how your current store items will look like on the new platform.