For 2000 VA you need two batteris and connect them to inverter for 24v.
200 + 140 wont be a good choice, bcoz once the lower capacity battery charges to 100% ups will still keep on charging the other higher capacity one and damage the lower capacity one.
get 140 Amb x 2 or 200 AMP x 2 batteries.
Homage new models got some problems and i know a dealer from some time and he got homage but asked me not to go for homage.
Go for Mercury only its a good chinese brand i am using it at home from last 2 or 3 months never had any problems.
Homage is advertised by R&N and they just get the chinese inverter i dont now of what quality and name it homage.
for more info about mercury go to Mercury - Expect More