Lead Qualification - add a webhook trigger

We're desperately in need of a webhook trigger on lead qualification change! Let me explain, why. Since the primary function of LGM is to qualify leads into prospects, the most important webhook would be to populate our CRMs with the qualified leads - and currently it's not possible, because webhooks are available only in the campaigns context. But at the end of the campaign - it's not really important to trigger a webhook, since the lead HAS to be manually qualified. So, for now, we're either limited by Hubspot Integration (simple, but very expensive) or the Zapier (less simple, but less expensive). What any bootstrapped company would LOVE - is a more complicated, but a free solution : send a request to our custom webhook when the lead is qualified by the salesperson after the lead finishes the campaign.