Regarding your needs I commented that an animation service is not done by just one person, our company has many professionals in this field and we can work with up to 4 animators, to finish more time, but the script and story board, should give it to me. All animations include the voice of 2 characters if you want more characters you will be added 500 dollars for each character with 100 words of your script, the soundtrack is also not included, if you want an original soundtrack this is in an additional 1500 dollars adiiconal. In short, since he does not specify what he really wants, I give him the prices so he knows.
Regarding your questions
1) What is the link in your portfolio that includes ONLY animations frame by frame?
In my portfolio you can see a video with two qualities.
2) What animation software do you use?
Animate, Toon Boom Harmony
3) In what term do you work?
It depends on your need because I can work with 4 animators and depending on the script and characters I can tell you the time.
4) What is your rate?
96 dollars per second