Social Media posts in Canva to echo template dsign provided

I have a project which requires 20 social media graphics created in Canva to be shared with me so that I can amend them in future in Canva. I have 6 template styles and I'd like the posts to be made in these styles. I have the logos, colours, images and all overlay text ready. The client is a not for profit organisation so is on a fixed budget. If thisi s one for you let me know how long this would take and when you could begin. Thank you
Beverley