How to Overcome LinkedIn Ads 300-Member Minimum Audience Size for ABM Campaigns

Hello! We're running ABM on LinkedIn Ads at scale, and we want to personalize our creatives at the company level (1:1 ad personalization — dedicated assets with logo displayed, messaging per account). The problem: some companies on our list have fewer than 300 matched members on LinkedIn (the minimum audience size to launch a campaign), so we can't launch the campaign. Has anyone run into this issue before? How did you work around this limitation? One idea we had: buying/creating ~300 LinkedIn accounts linked to a single company, so we can include it in our audience and not be blocked by the 300 minimum. That way we avoid mixing the audience with other companies and wasting budget on untargeted accounts. Has anyone done this or knows a provider offering this kind of service? Or a better alternative? Thanks in advance