new baker - need cookie and cupcake advice!!!

hii im a new baker and i have some family events coming up in 3 weeks and have been asked if i can make 40 fondant cookies and 40 cupcakes for the party!!

the only issue is this is my first time making such a big batch and making cupcakes for events too. ive made fondant cookies many times but thats always a day before the event. because i need to do cupcakes too i cant do everything the day before so need the week to prepare!!

would it be okay if i made the shortbread dough, cut my shapes out and then freeze it like a week or few days before i need it? and then bake immediately from frozen? i usually freeze the dough before i bake it to avoid spreading but im worried because this time because ill be freezing it for a few days instead

in terms of fondant toppers i heard i should leave it overnight so it can harden for a bit and then put it on the cookie? or should i put it on the cookie then leave it overnight and then package it

and im trying to practise freezing cupcakes just to save me time but id appreciate advice on how to do it! i see so many mixed comments and have no idea how to actually approach it. like do i let them cool to room temp then wrap it or do it whilst it’s still warm? do i decorate straight away on the frozen cupcake or let it thaw?

and lastly any advice on travelling with cupcakes? cookies i can just package and put in a box but im anxious for the cupcakes since the weather might be hot and i don’t want them to melt! and im thinking of just putting them in cupcake boxes and hopefully that’ll be okay?

a lot of questions here but id really appreciate some answers thank you so much!!!!