If engine already severely injured ofcos will die earlier man~~ should fix the problem asap...
4G92 can boost mora than 1bar if you changed internal part, BOT is cheap because it's designed for oem car, no need to tweek engine internal therefore save labour from open engine, piping welding and etc, just pasang and enjoy only... If you use good piston, wanna boost 2bar also no problem...
Since you wanna do your engine at one go, set your target first, how much bhp, how much boost, then only find the suitable part such as gasket, piston, ring and seal & etc within budget which can heal your engine and no need double work when you wanna BOT, just pasang and enjoy...