Is this a realistic tummy tuck expectation for a contoured/hourglass look?

You appear to be a great candidate for a tummy tuck with liposuction for sculpting. While your goal body may not be realistic, I do offer an additional procedure to my tummy tucks called "waist enhancement" that reduces the waist even further. Consult with a board certified plastic surgeon to learn what options are available to you. Good luck.

A short-scar TT was developed to enhance a patient’s abdomen and get rid of excess fat and skin in a way that created more attractive results. The shorter scar it leaves is the same length as that of the mini TT.  A short-scar TT, however, offers double the amount of loose skin and fat removal that a mini offers.
A physical exam would be necessary to determine what procedure (short,full) is most appropriate for you to achieve the results you are seeking.  A TT addresses both the loose skin and the lax abdominal wall as to give a nice, flat youthful contour to the abdomen.  The TT also creates a more youthful belly button. 
Liposuction, along with the TT, will allow you to have stubborn fat resistant to exercise and diet removed from unwanted areas (stomach, flanks, back).  If the waist was smaller at one time, the waist can likely be reduced to those same measurements or smaller provided the muscular and fascial integrity has remained the same.  A smaller waist may make the buttocks more conspicuous, but definition will not change.
Healthy people at their ideal weight should have the best overall recovery from a TT, but some of this will depend upon the surgical technique and adherence to postoperative protocol. Your anatomy is incompatible with your aesthetic goals, but I think you would be pleased with the results.

It appears from your photos that you would be a good candidate for a tummy tuck with liposuction for contouring.  Your goal photo is realistic, but always beware that your surgeon will need to work within your anatomy.  See a board certified plastic surgeon near you to learn more.

Thank you for your question and photos. From your photos you appear to be a good candidate for a tummy tuck and lipo, since you do not plan on any future pregnancies. I think your desired after photo is not a realistic expectation of outcome from this procedure. Be sure you meet with a board certified plastic surgeon. 

You are a very good candidate for a tummy tuck. It will make your tummy flatter and tighten the skin very well. However it will not narrow the waist much of at all. It’s a great operation for someone like you but it won’t accomplish everything you want.