@Gilmorehappy or @Shane Norwell where are yours connected through wall I think if I drill through it take out the mirror in ensuite?
@davemc, newcastle is flooding so hard right now I dare not go outside to look! We're supposed to be leaving for Harrington from Newcastle tomorrow after work, which could be a mission with the East Coast low hitting locally around 6am. But, at the soonest time I'll have a good look inside and see if there is any bolt head evidence internally at the rear near cupboards and mirror..... I reckon hanging the 60 kg max Fiamma weight off the back wall needs very precise anchoring through the ally studs as suggested!