Have a trusted supplier or platform? Share your recommendations.
For used, I’ve had the best luck on ForestryTrader (https://www.forestrytrader.com); I always ask for a ‘cold start’ video and recent undercarriage measurements, which saved me a few grand on a Cat 568 last spring. Are you leaning new or late‑model used — auctions can work too, but budget an extra week for transport and title checks.