http://www.visajourney.com/content/k1guide
I'm not sure if you've used this guide to help you prepare. You will need a front cover letter to list all of the documents provided in the I-129f packet. You can find an example here under cover letter:
http://www.visajourney.com/content/examples
My personal opinion is not to overwhelm with unnecessary fluff. I think it takes away from the facts they are looking for. However, I know your country can be difficult. I would reconsider these:
1. 34a being an entire letter. Usually one short simple paragraph of how you met in sufficient, again too many unneeded details take away from what they're really looking for. The adjudicator have many many packets to review. I'm sure they get tired of reading all the minute details.
2. Letter of how we met - beneficiary. Redundant and not required.
3. Thank you cover letter at the end. Again unnecessary.
I guess if it makes you feel better to add in this extra you definitely can. I would include photos of you and her with family and friends.
It great that you have been preparing and researching ahead of time. You will be better off for it! Good Luck!
