Well,
I went and downloaded the catalog, and looked on the r300 r400, and his bike is not those bikes!
I will explain why.
The rear triangle of the R300 is very narrow (chain stays are short) which you can see from the pictures of the bike that the rear triangle is much bigger, even with the pics he posted.
Another thing was the breaks. In the R300 photo they don't look like cantilevers, they look like a 105 type.
Kfir