Hi Willem,
congrats, nice keris. Blade is sepokal form, strong Bugis influence and I am sure that the blade will show after etching a nice pamor, maybe ujung gunung.
Would place this keris somewhere between Sumatra and Peninsula. Could be a Bugis Riau keris.
Do you get a hilt and pendokok with it? Good worked blade IMO.
Regards,
Detlef