Oh how fun!! So your festivities are actually going to be starting REALLY soon 
Red gharara sounds luvely… i have never worn a gharara and wish I had one! If u buy something new, u will have to keep me posted!!! I expect a full report of complete description of the outfit.
Your brother is so sweet to have been the one to make the suggestion!! So many people out there would not even consider it because they don’t want to share the “limelight”. So mashAllah that was amazing of ur bro (and bhabhi to be). I seriously can’t wait to see the pics and hear all about the festivities!!! 
I just know everything is going to be turn out beautiful inshAllah. Everyone is going to be so happy to be there for the Valima and then witness such an important event in your life. You are goign to have so many people’s blessings and duas inshAllah. 
Yay - for having a good relationship to your bhabhi to be!! So she will be coming back to the UK and living with u guys?? She is going to luv having so many nands mashAllah se. My future nand actually has no sisters either… i hope that we have a good relationship as well and she comes to see me like her own sister. She is like 6 yrs older than me so sometimes I think she thinks I am too much a choti bachi! haha. But yea…its so important to get along with new family members… the new person completely changes the dynamics of a family so ..it should hopefully always be for the better. I am already wondering what kind of spouses my siblings will have and what kind of girl my bro-in law will marry!! All of this is yeaaaaaaaaarssssss away since our siblings are younger than us… but im find myself wondering xoxo