Any question answered...

My daughter is too heavy for child seat now, so she goes back in the trailer and I'd like to fit a rack for pannier bags.

Can someone point me towards a reliable detachable rack (rear and maybe front also or a basket) for frames which were not made to have one?

I'd like something which would withstand panniers.

I can google, but perhaps someone has a first hand experience.

Old man mountain are meant to be very reliable. No personal experience.