I don't want to discourage you in your search, but the main advantage of the 35mm condenser is to give you markedly shorter exposure times. This is most needed in a high volume, production environment, and is particularly useful with colour printing.
It can also be useful if you do really large enlargements - think 20x24 and larger - from 35mm or smaller films.
You may find, however, that for more typical work that the exposure times you end up with will be too short for most people.