Trace Illegitimate Great-Grandfathers DNA

I have access to our full AncestryDNA match lists and am looking for a genetic genealogist who can help pinpoint the identities of two elusive men: my great-grandfather (father of my grandmother) and my husband’s great-grandfather (father of his grandfather)... (Budget: $15 - $25 AUD, Jobs: Data Analysis, Genealogy, Report Writing, Research, Research Writing, Statistical Analysis)