Body tub compatibility between 3 and 3A

["Dave Rupert"<Dave_Rupert@codl.com>]

     Hello all,
     
     Does anyone know of the difficulties/differences between the body tubs 
     and sheet metal on a TR3 vs. a TR3A?  I am investigating the 
     possibility of starting with a widemouth 3A body tub to build a 
     smallmouth TR3.
     
     I have heard of some differences between bonnets and front bulkheads, 
     in addition to the front end sheetmetal, that make this job difficult. 
     Any additional information and advice would be appreciated. (Yes, I'm 
     still debating that ratty looking '57, if I can get the price down!)
     
     Dave Rupert
     Dave_Rupert@codl.com
     Rupert@oakland-info.com
     
     1967 TR4A
     1980 TR7