Forged piston brand selection

So I've pulled the 440 out of the barracuda and stripped it down.
She is a virgin bore 76 model which is running a forged factory crank( I put that in), factory cast rods and factory cast pistons. Looks like she will need a bore and hohn so I'm shopping around for new pistons.
I'm using stock 516 closed chamber heads that are still in good condition. I also have the set of the late 440 open chamber heads that came off this engine as am alternative option.
Unfortunately I'm on a budget now as I blew alot on the dana s60, hemi 18 spline and everything else.
I'm looking at speeders/TRW forged flattop pistons
But apparently they are too heavy and old technology. How bad can they be, TRW have been around for years.?
Ross, icon,diamond, Kb, are all up around $1000 Here in Australia by the time you ship them and pay duty etc.
440 source ones are also an option.
Also my machine guy said to buy pistons first and then he can bore it. I would have thought it was the other way around. Do I just go with 30" over? Sounds weird.

Any input is appreciated.