I'm not sure what the advantage of ~48 V in a single module would be; almost any EV pack has at least 8 modules in series and so some combination of modules comes up with a reasonable voltage for this approach2) EV traction pack reconfigure. An interesting pack to me is the BMW i3 pack. It uses something like 48v modules that are easy to remove and reconfigure into a 96v pack. It would be harder to up the voltage if I wanted to. In addition, It looks like about $3k for a likely degraded 22kwh on the open market for these.
As far as I can tell, the BMW i3 does use 12S modules, so about 45 V nominal. The Volvo Polestar 2 and VW MEB batteries also use 12S modules, but those would not be readily available in salvage yet.
If you want to hit the planned voltage in a single module, you can use Tesla Model 3 short modules (23S) or long modules (25S); a single module would almost hit the target capacity, and two (unfortunately in parallel) would be well up in the target range. Unfortunately because the modules are those two different configurations in the same pack there's no way to use all of the modules from a pack at less than 48S (~180 V).
And as Tim pointed out, there are always the 6S modules of the traditional Model S/X, which could be series connected in pairs for the target fragment voltage, with two pairs in series for operating voltage. Four of these modules from the 86 kW pack is one-quarter of the pack, so a bit over 20 kWh without dealing with any parallel connections.