A vintage Cambo Wide DS can do this; you'd be hitting the B&S section here and eBay for the camera, lenses, and appropriate backplates. Get a backplate that will take an H/V/Phase-mounted Phase back, and find a groundglass+Graflok back with a MF film holder on it. The lenses are the same as on the (newer) Wide RS and, nominally, the Phase XT.
All that said: depending on what lenses you have on your ArcBody, putting an older Phase back on your ArcBody could be a possibility. since there are some perfectly good Hasselblad V (your ArcBody takes V accessories, right? Been at least 15 years since I've seen one IRL...) used older Phase backs around. The Capture Integration crew could probably give you a better idea as to possibilities with this.
The problems you'd run into with that and your TS-E lenses is that a) you need a back with an electronic shutter, which means an IQ3 or IQ4, which there might not be one of in a mount that will fit the ArcBody, and b) the ArcBody lens mount is unique, so you'd probably have to custom-fab yourself a mount to get from that to Canon at the appropriate space. If you do with a Cambo rig, Cambo makes a perfectly good Canon to Cambo lens adapter that I end up using semi-frequently with my TS-E lenses and reviewed in a past issue of MF.