Am I a candidate for VSG Surgery if I am allergic to latex but otherwise qualified?

Hello
Thank you so much for your question and congratulation on taking the decision to become healthier. According with your BMI you can be a great candidate for bariatric surgery; but there are other factor to take into consideration before making a decision; in this case the procedure to keep in mind would be a revision. 
The sleeve gastrectomy, which reduces the size of the stomach is probably an excellent option because  the 70% to 80% of the stomach is removed and the part that produce Ghrelin which is a hormone that makes you feel hungry. Paired with healthy diet and exercise you should have a successful procedure. 
To qualify for weight loss surgery, the American Society for Metabolic and Bariatric Surgery recommends you meet one of the following:
1- BMI ≥ 40, or more than 100 pounds overweight.
2- BMI ≥35 and at least one or more obesity-related co-morbidities such as type II diabetes (T2DM), hypertension, sleep apnea and other respiratory disorders, non-alcoholic fatty liver disease, osteoarthritis, lipid abnormalities, gastrointestinal disorders, or heart disease.
3- Inability to achieve a healthy weight loss sustained for a period of time with prior weight loss efforts.
Have a consultation with a bariatric surgeon this will allow you to discuss about the different procedures in details. Many factors should be considered when deciding for a bariatric surgery, is needed to check your current health status with lab work and in a consultation you can accomplish this.  Don't be discouraged and continue searching the best option to improve your health.
Good luck in this journey

Weight loss surgery can help you to get rid of at least 80% of your excess weight within the first year... regarding to your latex allergy, there are gloves, drains and other disposable supplies used on the operation that are made of latex, in your case they must be substituted with silicone and nitrile kind to avoid an allergic reaction