Organizational Conflict of Interest?

I work in local government that is a recipient of federal funds. 

I have a question about organizational conflict of interest. 

As part of the solicitation process for complex supplies, we would like to request basic designs from qualifying firms and inform/amend our technical requirements with the concepts that we like. We would amend the solicitation in a performance-based manner to avoid being too specific/restrictive and avoid tailoring competition to the firm(s) that offered that concept. We will be expressing this intent up-front. After the technical requirements are complete, these firms will be submitting their actual proposals. Would this approach - requesting basic designs to inform requirements, of which the same firms will propose on - create any sort of organizational conflict of interest?

There is also a desire to score "bonus points" to the firms whose concepts we adopted. We intend to be clear in the solicitation about what concepts will not be considered for bonus points (i.e. concepts the agency already published) and which conceptual areas will be eligible for bonus points (i.e. communication software systems strategy). 

Thank you so much for your feedback.