Steps to replace Panorama managed firewall with different model

We have two firewalls currently managed by Panorama. A 5410 and a 5280. We're replacing the 5280 with another 5410. What's the best approach to do the migration? Both are standalone firewalls. No HA. We'll use the same optics that are in the 5280 on the new 5410, but the interface numbering is going to be different as the 5280 has different interfaces than the 5410, so we'll have to deal with that. Not looking to change anything else. Just a straight 1:1 replacement. Last time we did a replacement it was from a 5050 to the 5280 and they were not managed by Panorama. I seem to remember us exporting the config from the old one, doing a find and replace for some interface names, importing the config to the new one and then fixing anything that was broken. I've never done a replacement under Panorama. Any advice is appreciated.