Accepting Islam and changing one's name

Q: I am looking at converting to Islam and have several questions. Is my name permissible, or should I change it due to it having un-Islamic meanings? Todd means fox, dog, clever or wily (intending to be deceitful), and Christopher means Christ-bearer. My next question is hair on men, my hair is long, it is past my shoulders but is neat and kept clean, am I commanded to cut it or shave it if I convert? Also, what is the rule on piercings, I have several. My last question is I still am researching and trying to clear doubts, should I take my Shahadah now or wait and clear my doubts first and say it with a clear mind, and is it better to say it in private or in public like a mosque?

Studying through correspondence

Q: I have recently finished hifz in a boarding Madrasah and now I am doing full time aalim class local. I am finding it very different to maintain my hifz I tried to go back boarding madrasah but my heart weren't there. So I came back to my alim class locally but now I feel like going college im 19 I was thinking about how I will make a living in the future can you give me some advice.

Burying an old frame

Q: I have a wall frame with Arabic surah written in it and it has gone really old it is beyond repair and can not give it to anyone if I do the other person will not hang it on a wall in his house. How can I dispose of the frame?

Imitation rings

Q: We teaching revert ladies. Coming to the type of rings permissible to wear, we explained metal jewellery are not permissible because the idol worshippers used to use it. Now some questions arose. Please give us some clear and simple answer to their understanding Insha Allah.

1) Why is it not permissible to wear imitation rings (i.e the event behind it if there is) and do the idol worshippers used to have a certain tradition behind it or is it just that they used to use it?

2) Why is it then permissible to wear imitation jewellery (besides rings)?

3) Some jewellery are made of animal skin especially (south african) traditional jewellery. Is it allowed to wear such? Even in namaaz?