I am pretty certain there is no way to soft-push this machine to PAL mode. If I were to replace the 8361 with an 8367 (PAL version of Agnus), would the system be a PAL system, or are things more complicated than that?
I'm not sure I'd use an A1000 for that, an ECS A500 would be better.
However I don't think it is supposed to be that much more complicated than switching the Agnus. The oscillator appears to be optional.
http://www.amiga.org/forums/showthread.php?t=60206 You might have an early Denise that doesn't support Extra Half Bright & wouldn't count on the composite video outputting colour (either NTSC or PAL standard).
