I wrote my own resume (and wrote my friend's resume - she was hired as a new grad into a level 1 trauma ICU). I would never pay someone to write my resume. There are many free resources online (templates, examples) to help with writing resumes. Do your best writing your resume, then have a few of your nurse friends look it over and help you edit it. Heck, you could even post it here on allnurses (in the resume section with all your personal details removed).
Just make it look professional and easy to read