Interesting topic..I'm all ear's for a 4-wheel disc conversion for my LC also,
however about the tiburon brake swap..that's only possible on the previous eneration Accent's.."X3" since they share the same lug pattern as the RD series Tiburons
I'm not sure if the new accent share's any part's with the LC Accent..but if the hub size's are same as the hubs of the LC..there may be a possibility.
frankly speaking..hyundai went for quality and cost cutting over performance over this new accent..
it's the first accent to have a less than appealing leaf axle rear suspension..
and it's acceleration is no better than than the alpha 2 with a manual
it's the Crappy nissan B14's of the hyundai's.,if you get my drift.