Your first enterprise client

[shindig]

I dunno how you'd even bid without knowing what it'll cost you. You might get quotes from someone else to contract it out to and keep a commission.

It always takes longer than it looks on paper and there's always unforeseen problems whether large or small.

 

[blureach]

stfu and stop being a pussy. Go get it.

 

[CCarter]

And if you're not sure if you can meet the scope of a project because you've never done it before, how should you take that into consideration when working with clients?

Nothing I've done has ever been done before.

Just jump into the water, it's not as cold or as deep as you think. Just make your proposal and presentation look awesome. Free Marketing, Communications, and Management tools -> Practical Resources for Marketing Pros | Demand Metric

Here is a good starting point: Product Launch Plan Template | Demand Metric

Carry on...