I'm planning to re-restore my old 15' aluminum runabout, but I cannot figure out how to replace the plywood transom - it is sandwiched between the aluminum hull of the transom and the aluminum trough, so that only the lower half is visible from inside (under the trough). The trough seems to be welded to the inner-side wall lip. Any advice?<br /><br />The boat was built by Texas Boat Works in the 1950s or 1960s. If anyone has any information on this company - especially if they are still in business - I would like to find out more about them.