I noticed that there weren't many opportunities to use RF. You missed Ender IO, which has some useful machines.Well its true that BR is making a lot of power, but there aren't many machines that needs RF/MJ... You have Quarries, AE, Forestry and Galacticraft. What I am thinking in doing for 2.1.5 update is lowering the power output of BRs. That actually seems like better solution than making it that much expensive. Even classic IC2 nuclear reactor is not "that" expensive.
One obvious exploit is to use my RF to create EU. I'd be pretty tempted to run my stills and fermenters (which seem to have expensive energy costs now) from nuclear RF. I believe that's possible...?
As a positive, I don't see any way to create lava from RF. That would completely doom cheap-BR.
[/quote]But if you want to stick with this idea, here is something to think about. You can make the casing to use combination of Steel and Meteoric Iron from Moon. So that will force you to go to moon, for which you need rocket and making rocket in InfiTech is post-mid tier. Tungstensteel is kinda end-tier which can make BRs kinda useless at that point.
Getting to the moon isn't end-tier? (I actually have no idea)
You're probably right about t-steel. Maybe stainless-steel instead would be more appropriate. Getting chrome dust plus the incredible eu-cost of cooking the s-steel dust makes it still fairly expensive.