...with 200,xxxkm on it, its a good idea to rebuild the motor, right? While I'm at it, should I put in forged internals (re-sleeve it of course)?

I ask because I have a customer up at the shop I'm doing co-op and I don't know much about Hondas. I have already searched, and the answers helped, but didn't get me the detail needed.

Don't worry about price range either...

It depends what kind of turbo you want to go with, there are turbos you can get that you can install safely on a stock motor, without changing your internals, if you go with a 7-8 psi boost you need to change your internals, ecu etc.
If you go with a low boost, its a good idea to change the rods, install intercooler, change the clutch with 20% overstock. You should be ok

...with 200,xxxkm on it, its a good idea to rebuild the motor, right? While I'm at it, should I put in forged internals (re-sleeve it of course)?

I ask because I have a customer up at the shop I'm doing co-op and I don't know much about Hondas. I have already searched, and the answers helped, but didn't get me the detail needed.

Don't worry about price range either...
If price isn't a problem then heck yea forge inside lower comp pistons t4 some turbo cams *think they have them for H motors now* FMIC all the toys.

But not enough info you gave what kinda power you looking at whats car for AutoX drag street will this car be smoged? how bout gas is pump needed or you going to run race fuel?