few pages Flutter work for an existing app - short task

Hi, there is something you definitely need to know, so read it all before quoting.... I am looking to build the following pages in Flutter/Dart (it will be incorporated into my existing app which is being built by my developer). My developer is going to do incorporate it with the rest (unless the way you coded isn't straight forward or it needs explanation and helping/guidance, in which case you and my developer will be doing skype call or something until it's sorted out). So what you will do is basically the UI (coding in Flutter/Dart, obviously). You'll also do the logic of the page (whatever logic it needs, within flutter, noting in the backend), and you'll need to write the API for it as well. So, basically, build it so it could be plugged in and incorporated with the rest of the app/code. ok, without making this task sound complicated anymore let me tell what you need to do. Page called Referral needs full designing, Pages called wallets have some code already done, you can continue using our code (or start over if you like) --- total 3 pages ---- Page called scan (no need designing) my developer is going to need your help and guidance on how to fix a few issues (basically he is trying to keep the top and bottom nav/menu while scanning is also available). Right now scanning takes the whole page, but we want to keep a menu in the top and bottom. He may need your guidance of some other issues asking how to do. Only quote if you are expert in Flutter, because my developer is already a badass in Flutter/Dart. Tell me 2+4=? in the first line, if you don't tell me this, I will know you aren't serious and haven't even read the job description. in your quote, you must also tell me how long you will do the job. I am looking for someone who can start immediately. and you must write legit nice code, and also dynamic where it's required.