I do not have any photos and am not directly connected to this family; however, maybe I can provide additional info which might help locate a group photo for this man.
Also, I use 28 September 1864 as Isaac's death date, based on testimony given in his widow Delilah (Broyles) Hooper's application for federal pension. Some of the others who testified were not so certain of the day in September when Isaac died.
Isaac Hooper spent his childhood in western NC and was a son of Clemmons C. and Elizabeth Hooper, who moved from western NC to Alabama about 1837. I give that year becauseClemmons C. Hooper was "of Macon County" in his 14 May 1837 deed selling his land in NC. The Clemmons C. Hooper family then appears in Alabama on the 1840 and later census records.
According to his widow, Isaac had been a hatter and a poor man without real estate when he enlisted in the Union army. He had owned some livestock, but it was taken by the Confederates. Isaac's enlistment papers show he was a "mechanic" (i.e., tradesman) when he enlisted in the Union army. His younger brother Joseph B Hooper (a farmer) and his elder brother Tilman R. Hooper (a saddler) enlisted with him.
However, Isaac previously had served in the Confederate army under Captain Burgess, according to testimony by his youngest [posthumous] son. Confederate documents show Isaac Hooper had been enlisted by Thomas J. Burgess on 7 April 1863 at Warrenton, AL and suffered a slight gunshot wound in the hand in July 1863; he was a patient at Chimborazzo Hospital #4 in Richmond, Virginia for a month. Then, on November 2, 1863, he was listed as "deserted." This Confederate service was in the 48th Alabama Infantry, Company B.
Early in 1864, Isaac and his brothers enlisted in the Union army in the TN/AL 1st Regiment, Independent Vidette Cavalry, Company G. His personal description in his enlistment papers shows he had blue eyes, black hair, dark complexion, and was five feet eight inches tall. Those papers show he was born in Macon County, North Carolina. He developed chronic diarhhea and was separated from service for disability a few weeks before his death.
Because he was a poor man, he may not have had sufficient means to hire a photographer for an individual portrait. Thus, I believe the most likely source for a photo would be in a group picture, perhaps with his siblings and thus potentially available through their descendants. Or more likely, he might appear in a group picture of the company for either of his military services.
If you search out military history bulletin boards and post a request for a group photo for either the CSA 48th AL Inf, Co. B - or for the USA 1st Regt. TN/AL Independent Vidette Cavalry, Co. G, you might get lucky with a Civil War photo collector.