Ask HN: B2B Software Evaluation Licence Template

We're a startup that will be selling components to large companies which they will then incorporate in their product. We have an SDK that contains a API to our (compiled) code, and would like to share it with potential customers (<20 in total, good relationships with all) for evaluation purposes.

We're going to ask our lawyers to draft a licence along these lines, but are there any published contracts out there that give us a starting point?

We're keen to make the documents as simple as possible, and not include anything that would put off a large company. I guess the evaluation period would be 90 days from signature, and we would require all copies of the SDK to be removed at the end of the period, and no release of software containing the SDK prior to agreement over licensing.

It would be great to get some feedback from companies who have been through a similar stage in their development.