Purcell and de Brossard scores ?

[David Séverin]

Hi everyone,

        this is of topic, sorry for the noise, if someone can
        recommand another mailing list for these kind of questions,
        I'll use it in the future.

I am looking for

        'Ode  for St  Cecilia's Day' 
        'Welcome to All The Pleasures'

        score and/or parts [from H. Purcell]

and 'Cantiques Sacrez from Sébastien de Brossard:

        ' Salve Rex Christe'
        'Psallite Superi'
        'O Domine'
        'Festis Laeta Sonent'

before to purchase these, I was looking and searching internet,
couldn't find any free score of these, anybody aware of a source
university library or ... ?

if not, is there a site where people exchange [sell] scores that they
don't use anymore ?

Thanks,
David