Basic referral function with signup counter

Greetings,

I’m hoping to find a script to do the following or to find out where best to hire someone to create it for unbounce (and an estimate of complexity/cost).

I am creating a simple landing page with aweber signup (and hopefully facebook social login). On the next page, the post-signup share page, I want something very similar to the attached screenshot, basically:

1. subscriber 1 (s1) receives a unique referral link
2. when others’ subscribe through the link, it says on s1’s share page how many have currently signed up, and which reward level he has currently reached (in a visual progression like in the attached example).

Optionally/ideally this link would also integrate with a viral giveaway function, whereas:

1. initial signup also attributes a definable number of giveaway raffle entries to subscriber and
2. when subscriber shares link, for each sharing action and/or new subscriber an additional, definable number of giveaway raffle entries are attributed to the subscriber
3. at the end of giveaway script randomly picks the winning entry

Thank you in advance for any help!
Rasmus