Hi,
Base on experience I would strongly not recommend doing it on Picanto if you are on budget, reason being the manifold you would have to custom which can cost you RM1k already.
For my case, most of my parts are from GSR turbo, you can buy second hand turbine + wastegate + manifold for RM650 ish. Complete GSR intercooler + piping very much less than RM1k after you refurbish all the rubber hoses to silicon.
Reliability wise, should be fine if run on low boost. Of course must tune to get good reliability, get the most optimal AFR so that the engine has sufficient ratio of air to fuel at all times.
So far only run for one month, planning to change to manual soon so not going to install ATF cooler. Will post some pictures as soon as I go home hehe.
---------- Post added at 08:15 PM ---------- 6 hour anti-bump limit - Previous post was at 07:31 PM ----------