Plinth final assembly
Handheld drill, 2mm bit
10mm countersink bit
Masking tape
Double-sided tape
3 x ?? woodscrews
4 x rubber feet

Time: 2 hour construction 2 hours painting
Remove the inner plinth and baseboard.
Tape over the rear suspension hole and the horizontal edge of the plinth above it. Mark the centre of the hole on the tape.
Tape the rear suspension mount onto the rear of the plinth, centred on the rear suspension hole, level with the flat surface of the plinth.
Mark the centres of the mounting holes on the tape below
Drill the holes to the required depth.
Measure and cut plasticard to fit on rear of plinth; either the full width (if a spacer is required between the inner plinth and rear of plinth) or up to edge of inner plinth. Mark position of screw holes on card, and drill or punch 5mm holes through.  Check screw holes are visible when plasticard is in place.
Remove masking tape, fix plasticard in place with double-sided tape and screw suspension adjuster in place.
Fit any sockets and power leads to and through the plinth
Screw layers 3/4 onto layers 1/2 to form the inner plinth.
Prime and paint the baseboard and inner plinth.  Screw some spare M4 bolts into the suspension fixing points to avoid painting the threads.  It is best to prime the cut MDF surface with brushed-on primer, as it soaks up a lot of paint.
Fit the feet to the baseboard. If screwed in place you will need to drill the three hidden (by internal plinth) holes through, but stop short with the right-rear (under tonearm) holes. Cut the screws short so they do not stand proud of the baseboard.
Refit the baseboard, put inner plinth in place.
Measure and cut a small (60mm x 120mm) piece of plasticard for the right-rear inside of the plinth
Refit left and right suspension.