Bottom end options

Hello hello
I have come to ask from some advice of you wisened members.
My searches havent been particularly fruitful but i am only using my mobile.

I own 1.9 8v bkc engine. Ive just finished doing upgrades on brakes chassis and its now time to start building the power.

I have been told the bottom end of a bkc isnt very strong so im looking to beef it all up. Girdle if needed, crank rods and pistons.

The block is going to be bored out to 2.0. What are the best options for the conrods and crank? I have read various things about rosten pistons from a pd130 etc etc h beam i beam etc.
What works best and will handle power reliably.

If you need any more info from please fire away

What is your power target?

I want to achieve 300hp but i dont plan to run it at that power. Dont want to be pushing it to its limits if that makes sense.

If BKC bottom end is similiar to AJM, it's good for the power target without modifications.