Hi,
No one can guarantee No.1 ranking in Google. That's against Google webmaster rules. But it doesn't mean that you can not bring search engine's attention towards your website.
A SEO project takes time to bear fruit, but the results are much reliable and long lasting. (You can't plant an apple seed and have a apple to eat the next day.)
I am a SEO, SEM, PPC and Google Analytics professional. I am willing to work on this project.
Please check PM for details.
Looking forward to working with you.
Regards,
Sudeep