As I keep saying, one must read the rules in full and in context. The context is here page 133 and 134. Read in context, "your points" refers to "the total points value that determines the maximum points you can spend on your army."
Is your interpretation impossible? No. Is it improbable? Yes. However, as I said before, in a friendly game, few will object - provided you ask them (as a matter of common courtesy). In a Tournament, that might be more problematic. And you must be consistent: you cannot use 2 Steam Tanks, because 500 is 25% of 2.000, and then use 499 as core, because it is 25% of 1.999.