Creative Birthday Proposal Video

I need a fun and playful 20-30 minute video for my girlfriend's 30th birthday, where I will also propose to her. The video should: -Start of as if you were watching movie - Include lots of photos and video footage I provide... (Budget: £250 - £750 GBP, Jobs: Audio Editing, Creative Design, Creative Writing, Video Ads, Video Editing, Video Post-editing, Video Processing, Video Production, Video Services, Videography)