looking for english native speaker for translation of a book (for kids) from Polish to English!

Hi,
I am looking for native english speaker (please, offers only from native speakers!), who will translate a book for kids from polish language! I would ask you for translation of one page first (1800 characters incl. space bar). If I will be satisfied with your work I will contract you to do translation for the whole story (approx. 150 pages). Please let me know about the price for the test-translation of one page (offer your bid) as well as total price (and time needed to complete this task) for 150 pages. Thank you and regards!