@alexaledger That I can help you with. @blueorgy set up a site dedicated to hosting full size images for Steemit users. Just grab the images you want and upload them to the site below. It's free and very easy to use.

If you go to : https://steemimg.com you can create a free account to store your images on and it works very similar to imgur. It will give you direct links you can just cut and paste right into your posts to have the full size image displayed.

If you run into any issues or problems just let me know and I can help you out. :)