Hi I'm looking for an alloy gas tank for a wassell dalesman trials bike,they were made in the UK with a sash 125 engine,I think they were also sold in the us as penton mudlark I had one when I was just a lad,and have bought one off theifbay to restore but it is fitted with an incorrect tank,thought I would ask on here as loads more were sold in the us.the tank is the center post fitting any info let me know cheers Lance .