Eagle parts have tolerances all over the board, and are not heat treated properly. I can measure .001" taper across a journal, out of range journals, and have seen sets of rods that are out of round straight from the box. The cranks when balancing are super soft and cut like butter...that being said there are plenty of people out there using them in 700hp+ applications, just not something I will do.
If you need a cheap rotating assy, Probe industries is the cheapest I would go, I have had pretty good success with their parts being in spec out of the box.
I am not sure what the retail cost would be for you, but it costs me $1550 for their Dominator series 4340 crank, 4340 rods, forged pistons/rings, and bearings as a complete kit from them. Your cost might be $400 more, but you are getting forged pistons and clevite "H" bearings for that extra.
How much power are you looking to make?