1) Receipt page:

Minimum: 1 day
Maximum: 3 days
===
2) Accounts Page:

Minimum: 1 day
Maximum: 3 days
===
3) Membership/Coaching:

Minimum: 2 days
Maximum: 4 days
===
4) Confirmation dialogs:

Minimum: 1 day
Maximum: 3 days
===
5) Refunds:

Minimum: 2 days
Maximum: 6 days
===
6) Applying offers to items in transactions

Minimum: 2 days
Maximum: 4 days
===
7) Emails and SMS related features:

Minimum: 4 days
Maximum 7 days
===
8) Google maps and captcha

Minimum: 1 day
Maximum: 3 days
===
9) Location features:

Minimum: 6 days
Maximum: 12 days
===
10) Social media features:

Minimum: 6 days
Maximum: 12 days
===
11) General bug fixes:

Minimum: 6 days
Maximum: 12 days
===
12) General UI fixes:

Minimum: 6 days
Maximum: 12 days
===
13) Optimizations:

Minimum: 4 days
Maximum: 7 days
===
14) Browser testing

Minimum: 6 days
Maximum: 12 days
===
15) General server testing

Minimum: 4 days
Maximum: 6 days
===
16) Implementing your requested changes and future requested changes

Minimum: 12 days
Maximum: 18 days
===
17) Unforseen complications

Minimum: 6 days
Maximum: 12 days
===

Total:

Minimum: 70 days
Maximum: 136 days