Shopify website - Assistance with customising the theme, editing coding, etc.

We currently have a Shopify website that has recently undergone a big change (change of business name, colour scheme, etc). We are in the progress of updating everything on the website to reflect this. We need assistance with customising the theme, editing coding, fixing faults that appear on the website through added on apps, faults within the themes coding/edits, etc. We need someone who is very familiar with Shopify and also the Porto theme from Envato Markets / Theme Forest. Someone who is very comfortable with making changes to the theme through both theme editor and coding. The way we work is I send a PDF checklist with things we've picked up on the website that need to be fixed and check it once you've finalised and prior to sending a new checklist. We may get assistance with uploading products to our inventory also once all theme edits have been completed. We also need someone who is familiar with the theme Oberlo as we are going to be putting some products onto our website through Oberlo in the next few weeks (someone who is able to assist in ensuring our Australian products and International products are clearly separated and only the particular ones we want sold internationally can be purchased by those international customers). We work long hours and are dedicating a lot of time to getting this website completed, it is something we need completed as a priority and urgently. We need someone who is going to be available the hours that we work and who can dedicate themselves to this project alone and not this project plus 5 others at the same time. We use sky0pe to speak to our Freelancers and are always available for any assistance that is required, any questions, etc. Someone who is hard working, dedicated, communicates well, can provide ideas and suggestions, understands Shopify and the way the backend works, etc. Only people who have taken the time to read this message and send me a message saying or include in their response on the project post "I am dedicated to this project" - so that I am aware you've actually read this message will be considered.