904 rebuild help..

The link to the MadDart build says the page cannot be found , I bought all my stuff from TCS in Langley BC , they make a lot of their own parts including billet steel or aluminumfront drums that are machined with the retaining ring grooves relocated for additional frictions , IO bought the billet steel ubit and it included the 24 spring unit as package .
PS- the deep pans are available for a real good price from the dealership as a kit that includes the extension , longer bolts and a new filter .
PPS- AJ/FormS the 904 has a riveted sprag and a smaller drum diameter so there is no need for a bolt in replacement .