Any supplier worthy of becoming your partner will honor your directive. As you read from your form and describe your needs, as any information that might help the researcher build his proposal. Unfortunately, having to build a benchmark the second year of a study, rather than the first, is all too common. Often a few alterations in the first would save the corporation valuable time and money. Review other information that might be used in combination with the study.
Revealing budgets is always an issue.
However, being open about your budget helps researchers with the overall study design. Until you reach a point of trust with your supplier you will necessarily need to be even more specific, relating the overall breadth of information required. That only wastes your contact s time and yours. Be careful when trying to determine why costs wary among research firms. A particular methodology delivered with a certain time frame can be more costly for one firm than another.