We already have the option type contribution installed we also have the file upload for option type installed.
We need two things done:
1)We need a additional option for displaying the input type "textarea" there is already the input type text field so you should just be able to duplicate that code adjust it and add a new field in the database for textareas
2)we need to modify the option type file upload so that it displays a scaled down thubnail of there uploaded image file right under the browse button and text input line , [url removed, login to view] We need a preview button right next to browse. There is a perfect example of this here [url removed, login to view] they use a preview button and you can also do that.
We prefer past experience with the option type contribution.