You will be able to purchse all the necessary materials from your local hardware store:
(2) adjustable sawhorses
(2) lengths of selective white pine measuring 96″ x 2″ x 1″
(2) lengths of selective white pine measuring 50″ x 2″ x 1″
(8) 2″ C clamps
The two 50″ x 2″ x1″ lengths of wood are to be placed on top the sawhorse allowing i” of overhang and then clamped down.
The two 96″ x 2″ x 1″ lengths of wood are to suspended between the two sawhorses and then clamped down to the required working area required size.