Are there any doctors still willing to do large volume liposuction?

The limit for liposuction performed in an office setting (there is no such limit for hospital based surgery) is 4-5 liters of lipoaspirate. A liter (assuming equal fat and water density) is 2.2 lbs. Thus 4 liters is equivalent to 8.8 lbs. However, it is important to remember that lipoaspirate is a not purely fat but rather a combination of fat, tumescent fluid, blood, and miscellaneous aspirated tissue. The fat component may only represent 50% or 4 lbs. of the total.
As you said, liposuction is not a means to weight loss. The optimal candidates have reached a healthy stable weight (preferably with a BMI < 30). They have one or more areas that have been resistant to diet and exercise and are in need of contouring. Think of liposuction as a surgeon's sculpting tool or chisel. It is designed for fine detailing not wholesale demolition.
Anecdotally speaking, I have rarely (if ever) had to aspirate volumes approaching 4 liters. I would venture to say that those patients in whom high volume liposuction is performed would have perhaps been better served by pre-operative weight loss.
With regards to your specific question, you sound like a reasonable candidate for surgery but there is a limit to what can be said without photos or an in-person exam. The optimal liposuction candidate has reached his/her weight plateau and is seeking to address one or more areas which have been resistant to traditional diet and exercise. In my experience, these patients rarely require 4 liters of aspirate.
As always, discuss your concerns with a board certified plastic surgeon (ABPS).

It is important that you send us pictures so you can see what your inquiry is, you may need a liposuction to shape that area but it is most advisable that you make an appointment with a plastic surgeon so a medical evaluation is done and you can Determine what results you want to get and what type of surgery you need
There is an innovation in the level of plastic surgery called VASERlipo is an advanced body sculpting procedure that eliminates fat to gently reshape your body, making you look and feel your best:

*Single Procedure 

*Speedy Recovery Times 

*Clinically proven to produce even results 

Important: Everything will depend on the results of the pre-surgical evaluations and the indications of your doctor.

Always to serve you !

Dr. Manuel Ventura ( Certified, Plastic Surgery, Ivo Pitanguy Institute, Rio de Janeiro) .
Residency: Medical research institute of plastic surgery in sao bernardo do campo, sao paulo, brazil.