Could you possibly add an extra config option for each item listing, to rename on purchase. If left null, item will be given with default name.
For use with all plugins which use custom names for items, they do not appear correct when buying item through SR.

"supply.signal_1942898011": {
"shortname": "supply.signal",
"customIcon": null,
"customName": "Minicopter"
"amount": 1,
"skinId": 1942898011,
"isBp": false,
"category": 14,
"displayName": "Supply Drop - Minicopter",
"cost": 1000,
"cooldown": 0
},