Can I get away w/ just Veneers instead of gum contouring and Veneers? Added 4 photos that my original post didn't have. (photo)

The appearance of a gummy smile can be the result of the upper lip movement when smiling, talking, laughing, etc... OR various forms of altered eruption patterns (e.g.passive, active, compensatory, delayed). If the gummy smile is a result of lip mobility, treatments such as Botox have been effective in reducing the amount of vertical lip movement. If it is a result of altered eruption, a gum specialist (aka periodontist) will be able to evaluate and recommend appropriate treatment before the treatment with veneers begins. Typically, the excessive gum tissue is removed to expose more of the tooth by a periodontist or trained dentist. There are a variety of method to this. So before you begin, it's best to ask your dentist to confirm the etiology of your gummy smile with a periodontist in ordered to plan how to achieve the best aesthetic result with your new smile! 

Find a dentist that can use laser to reshape your gums. Don't be afraid of the healing because you are diabetic. You will heal just fine. Don't let anybody convince you to do a scalpel surgery on your gums. You will heal slow and develop a scar tissue and its going to be worst. Veneers are an option only after reshaping the gums, so called "smile lift" and can't substitute for gum reshaping and they are more invasive and way more expensive. Good luck!