Why? Do you dislike to have access to iron-equvalent armor at the endgame?
I like the MPS-Recipies more than MFR. MPS is a holy-shit wtf. armor. And some advanced plating with titanium is easily done and you have indestructible diamond-armor without enchants. Updating it to energy-shields makes it pretty much like a Gravi-Suit which is also quite expensive. The batteries are kinda rough though. In the normal IC2 or TE recipies the best battery is too cheap. The HV-Capacitator is just an energy-cell + a bit of silver/copper... thats very cheap.
The only thing that is really ridicolous expensive is flight-control... but than again it is flight, which is indeed best ability to have on an armor and compared to the jetpack you can actually move very precisily. Given the fact that 9 Ferrous Ore = 1 Iridium getting a good MPS isnt that hard. The emeralds are kinda tricky sometimes, since you need extreme-hills, a village or chests for them (or well ocean + railcraft), it isnt that hard to get them but it can be tricky sometimes. The rest isnt that hard and it actually is an achievement.