Reynolds 753 'Liberia's kitted with Campy were ridden by the RMO pro road team in the late eighties(?). Very tasty too. Then the team-sponsors went bust and the brand went to exclusive MTB output before being bought by Decathlon (a French sports store chain) in 98? I think they killed off the name.
As for your frame the threads are probably french and so any Shimano or Campy components after '92 won't be available.
I visted 'Liberia,' the bike shop, near Huy, in Belguim, in '95.
When the petrol's gone we'll pedal on.