Not a proper Mudlark tank but I guess it would do in a pinch if you can't find another.
http://www.ebay.com/itm/WASSELL-ALUMINUM-GASTANK-FROM-A-125-FRAME-KIT-CAFE-RACER-BOBBER-/390752991285?pt=Motorcycles_Parts_Accessories&hash=item5afab17835
Dale Fisher
Penton Owners Group - Memberships
Facebook - Cheney Twinshock Racing Group - Administrator
'70 Six-Day 125 - V2017
'71 Six-Day 125 (Dave Fisher's) - V5553
'72 Mudlark - W257
'73 Jackpiner - 175 21159727
'74 Berkshire 100 - 40171056
And some silly other bikes...
Dale, That tank went for $150.00. Worth every penny. It is the same tank that is still on ebay for $999.00.
The dents in the $150.00 one are easy fixes, and the tank itself is a very easy polishing job.
Someone got a good deal.