UPDATE: Just got home from store, good thing I brought DH along with me as he never seen a K IRL and can offer his opinion on size difference.
So my lovely SA was able to show us two K sellier sizes today to ensure which size look best against my frame.
First one was the cute RC GHW K25, DH thought it was very cute and the GHW was the icing on the cake. As we chatted, my SA asked another SA if it's okay to show me a RC K28 PHW that's already been spoken for another customer for size comparison (it just arrived today) and she said go ahead. I was really happy to have both RC K25 & K28 in my arms (dream come true!!!!!) for a good 10 mins in front of a full size mirror while DH and my SA discussed which size suit me better.
In the end, we all decided that K28 is better fit. She did check the store computer and reassured me that RC K28 GWH should be here very soon and it is reserved for me.
So here's the plan, she will hold K25 for me until May (back up plan) as the store SM is away but she will start the process for me to purchase RC K28 GHW as soon as it arrives.
It was very hard to hand that cute little K25 back to her, but like her and DH said, I will be happier with K28 in the long run. Just have to wait a little longer...
Thank you ladies for giving me soooo much help on this , I really appreciate all the comments.
I promise I will do a reveal as soon as it arrives