why not you glue it back using epoxy-hardener? yours is still GT right? i think there's a lot at dzz.just select whichever you prefer..if cultus handle, try ali kemuning.
normally during cultus door trim conversion, people throw away the old..hehehe.
for outside handle, i beg you can glue back but ensure you find back the broken piece. i 've done twice cause its a stupid plastic that hold the notch.