I Understand your concern, Its hard to believe any developer after whats happen to your project, But no matter I will complete your site, If You want, I will ready for free discussion to prove myself.
Points provided by you are quite regular and easy to complete, because I need to work on design and development of each and every site as per clients requirement, If you need I will give you Mockup.
Let me know what plugin you use for anchor navigation in your site, It will best if you provide link of your incomplete site.
I am working as web developer with more then 10+ year of experience in wordpress, Dupal, CI, and may more, I capable to solve your problem.
My work Patterns:
1. Frequent chat with client and share understanding regarding project/ Requirement.
2. If not decided, then help client to best CMS or framework for the project
3. Share demo, If any matching project done by me.
4. Discussion over payment method
5. Made agreement.
6. Client give the task or list of task
7. Client made payment if he/she want me to work on his/her server, OR
8. I complete it and give demo in my server
9. Client give feed back of task.
10. Once client satisfied with task, they made payment, i will upload the task to there server
11. If any bug found with tenure agreement validation period, I fixed it without any charge.
Please come to FL Chat for discussion, I have some quires regarding task, it helps to finalize.