Here are some shots of building the ACS spinner - Sorry, no shot of the fwd bulkhead though.

 

 

I had to cut 3/4" off the length and made a new prop blade cutout template smaller than the original.  Note that 3/4" coated pressboard was stacked and clamped to be used to mark the cutoff that can be seen in the picture.  The forward curve of the prop cutout was serially drilled and hand filed, the straight lines were carefully cut with a air-powered dremel using a cutoff wheel.  Parts of the cutouts were saved to close the area at the back of the spinner behind the prop.  The ACS backplate is seen in the fore ground and has less useless metal than the Lancair one seen in the background.

 

The spinner/backplate are being drilled.

 

Note the doublers have been mounted and cut to fit the inside curve (right side of pic).  A aft prop close out can bee seen to the left with thin aluminum tabs countersunk riveted to the closeout so it doesn't flop around when spinning at 2710 rpm, full power.

 

I will take pix of the bulkhead next time the spinner is off.  BTW, it took sanding and 6 powered polishings to get the manufacturing "spin tooling" marks out of the spinner.