Apologies for the poor pictures, but this is my TS200 extension. It is basically two pieces od 12mm birch ply laminated together, and then a stainless steel type laminate glued to the top and edges. Slot routed down one side with a UKJ ally rail screwed into it. Then routed a hole it for the router plate insert (bought from Amazon in the US for about £40 delivered to the UK).
Lots better than the pressed steel Axminster extension.
The wood outfeed table at the back I made out of spare bits of old pine ikea furniture (cut and planed). It is basically on castors with a lower shelf for the Titan thicknesser/planer, it also has slots routed into to that to continue the mitre slots. With it being on castors, and at the same height of the TS, I can either use it as an outfeed table or move it around to the left side to give more stability to larger bits.
Now I have the Dewalt tracksaw, I am pretty much using that for any sheet goods anyway...