For nearby places like Zhuozhou and Gaobeidian, are on-site visits and installation faster?

The biggest advantage of being nearby is the low cost of repeated visits: re-measurement, replacement parts, and post-installation adjustments can all be arranged quickly, and minor issues are easier to follow up on with a second visit. Gaobeidian's local location offers an additional advantage—you can go directly to the factory to select boards and verify hardware. The specific timing is still subject to the schedule confirmed by both parties.