jhune,

try browsing www.mymitsuph.com or better yet sali ka sa forums. there's alot of info there regarding your query.

as per your question, yes it can be converted to power steering, any competent mechanic can do that, if you're near or from San Juan you can contact Ray Sarol 09209252290, he's my friend mechanic. Text mo muna si Ray to set an appointment.

Same with your windows it can be converted to power windows too.

Gastos? I have no exact figure, but ballpark figure for converting to power steering can cost you somewhere around 10K or more, inclusive na siguro dyan ang labor, again this is just ballpark figure. Kung makahanap ka ng mas mura then good for you.

HTH