I suggest , the patient should get laproscopic cholecystectomy as, any time he can again have acute cholecystitis or stone may move and can lead to fatal complications like biliary colic or if stone gets into pancreas ,in future patient may get diabetes.
keeping in mind risk-benefit ratio i think patient should proceed with the operation once he is medically fit.
The only management option if the patient is fit for surgery is to have a Laparoscopic Cholecystectomy under general anaesthesia. There is no role of conservative management in Cholelithiasis. The more time delay is there, the more it becomes complicated. Complications include repeated attacks of pain abdomen, ascending cholangitis, Choledocholithiasis, Gallstone pancreatitis and even gallbladder carcinoma. So the patient should immediately be referred for Laparoscopic Cholecystectomy to a general surgeon.