Yes, thanks, I was just looking at that.
The entire journey from the OC to the Barragen da Bravura (This is the dam, the reservoir is the Albufeira da Barragen da Odiaxere) is 21km - pretty close.
From what I can see, the Escola Vehla Monte Judeu is on route. The map below shows where I think this house is circled in red.
From doing a forum search, it seems the German lady who owned the house let him stay there when she was away.
Some big “Ifs” here but if the three-sites theory is correct in this instance then perhaps OC is the abduction, MJ house could be where the crime took place and the reservoir is the disposal location.
Or perhaps it’s all nonsense and someone will tell me the 3 May 2007 and the MJ house cannot work.