I don't know if he can, but maybe John Taylor in WA state can help jump start the project. I believe he does special project rifling in his shop. If they were measured up carefully, maybe the barrels will be pretty meaty if the length were shortened to 24 or 25", or leave it full length. Maybe, he would consider making and installing a few inches of rifled 'liner' in the muzzle end like he lines bad chambers while preserving the original bore. He also does a very nice job of blending his lining jobs at the muzzle. Best of luck with the project.
