Welcome to the forum Boinky. I saw the sale post for the MLD and that looks like the deal of the year. I just wish I had seen the sale before you.
I think that most of the sales on the forum are on the up and up, even the ones like this one that sound too good to be true. I was able to buy a VRD from a member that was just ready to sell and didn't want to waste time in negotiations, so he priced her low. I'm just not sure if TomBout or Murray is selling that MLD, but they have both been members for a while and it looks like he/they have sold other dolls in the past. I suspect that it is the same member with more than one alias for whatever reason. I don't know nor have I had any contact with either user name, so I can not vouch for the seller. However I think that I would be comfortable buying this doll.
Good luck and let us know how things work out.