i dont understand why people use a harsher clutch with a t50 and 4ag with less than 250hp. youre just killing your t50 for minimal performance gain if any. a standard clutch and a pressure plate with 30-50% more pressure than standard is what you should be using.
youll be replacing clutches 30-50% quicker but you shouldnt have to replace t50 gearboxes at all.
id be happy with that ebay kit