How to add a separate upload field?

Question

Hi all,

I want to add a separate file upload field to question creation/editing forms.

After searching existing questions I see two possible approaches:

1. Extra question field plugin: http://www.question2answer.org/qa/23346

2. Manual field addition: http://question2answer.org/qa/10014

My questions:

1. Which option do you prefer and why?

2. Does anybody have the plugin mentioned above available?

3. Do you know any other addons or pointers for achieving this goal?

 

Thanks in advance!