I made some suggestions on your Grampian pack but managed to find some legacy modules/appliances that although are no longer in service would be cool additions to the Grampian pack when you do update it, such as a water carrier module, command module & ARP.
https://flic.kr/p/8VYrSd - Command Module
https://flic.kr/p/897cMt - Grampian ARP
https://flic.kr/p/89aqLy - Water Carrier Module
As stated in my comment I'm trying to get photos of all ex-Grampian variations anyways so can source extra photos of operational appliances if needed.