You could build any box any time a lot easier than you think dont get overwhelmed by the thought of equipment and such if Dad has a table saw for you to use you got er licked that is the biggest and most important tool ,the clamps can be had at the blue box for 12.99 at 36" full open and you will really only need two of them and use the birch ply as it holds screws better, wood glue and a very minimal amount of 1 1/2 "wood screws ,top bottom and center, I am sure you have a screw gun, one small speed square and a jig saw thats it box build done.Woodworking is very easy just protect your eyes ears and lungs at all times.My opinion on MDF is this its dangerously dusty and not only ruins peoples lungs ,when not being safety aware,but it ruins tools too the dust is too fine and gets everywhere besides subs are better off with real ply anyway,according to those that build em,and its lighter weight.