For the flower-lovers a few more information:
Differences between a British and a Canadian Flower 
 
 - The Canadian Flower has the 2 pdr. much more aft. Same with the shields below the gun platform. The reason is, that they originally all should have a mainmast. That was however only installed in the earlier ships and removed later anyway later.
- The Canadian ships have their galley behind the bridge on the main deck. Thats the reason for the kitchen funnel. The British ships had the galley at the aft end of the engine room casing, which is therefore slightly longer
-many Canadian ships kept their SW2CQ antenna even after they got their type 271 lantern.
This is not complete and there are exceptions (ships built for the RN in Canada e.g.)  but sums it up roughly.
Conversions for HMCS Brandon from the Zinnia kit:
- shortened foc'sle, including lengthened main deck
- corrected stern openings for depth charges and minsweeping gear
- complete new bridge structure
- shortened engine room casing as per Canadian standard
- new depth charge rails
- repositioned 2 pdr gun platform and shields
- new boat deck
- new raft platforms
- longer mast with SW2K antenna
- many small things like stairs, rails, AA guns, funnel grating etc
If you want to make HMS Alisma (there are some really good pictures in the net) in her short foc'sle version, you can follow my conversion with the following differences:
- do not do the Canadian conversions (gun position, galley position, mast antenna) 
-add the 271 radar lantern behind the bridge
Hope the info will help someone. 
 
 So that's it. Will be continued, when I can get my hands on more kits. 
Greetings from Shanghai  
