Any junkyard or trans shop should be able to set you up, those C6 truck converters must be a dime a dozen. If you really want new, I'd order it from Summit or Jegs.
I'd think a torque converter with 114K on it wouldn't need replaced though? They're one of the more durable items.
I was just thinking cheap insurance while the engine and transmission were apart.
Nah, unless the transmission had an issue and blew junk into the fluid and it got in the converter. If It's a C6 the converters are pretty damn stout. If it's got an E40D or an AOD, they are a crap shoot.
I had a 1995 F250 with a 7.3L PSD that had a ZF5 standard transmission in it, and I loved it.
Gary