So I decided to go the tried and tested route as I did with my 2.0 Elantra. Went out and got myself some VW Caravelle pistons. YES.. I said VW ... They are of equal dimensions in almost every aspect and they are dished. The piston face is 1mm lower than the stock Tib pistons which is great. Just have to shave the lip on the one side and seeing the dish is not centered, it also has to be shaved to accomodate the valves - two birds, one stone.. and to top it off.. they cost me around US$140 +- and are available locally.I would not recommend getting the 1.8L conrod and/or pistons. Not only does it drop your CR way down it completely hoses the quench area of the combustion chamber.
Dave - you may remember our mutual "friend" CNK ? - well he did the homework on the pistons way back when and is possibly the ONLY thing he suggested that actually worked correctly. anyway.. moving on..
They are capable of handling boost, considering my Elantra ran up to 1.2bar as a daily and never had any issues or failures.
Im busy stripping the replacement engine i bought as well. Sending that off to have crank polished, sleeves bored 1 oversize as well as new bearings(big ends and mains) and the head will be refurbished all round other than valves which are still good.