Movie Optimus Prime build

[kingbob]

Hey all, long time no see. Lifes been stupid busy and havent been on here for ages!

On the weekend I was on Facebook in a local Hobbies/pastimes page, and someone asked people to post pics of their hobbies. Naturally I posted a pic of my Optimus Prime.

Someone local has now messaged me asking if i'd be interested in selling it!
I'd never actually though about it, but i must admit the idea has stirred my curiousity.

But I haven't got a clue how much it might be worth. I can add up the cost of parts, but that doesnt factor in the time i spent on it. He did say he knew it wouldnt be cheap and has asked me to come up with a price if im interested.

What are peoples thoughts?