better pair?

I sold quite a few proven breeder females and a few that were around 1000 grams when I was forced to cut back my collection. Both normals and morphs. Nothing fishy about that if the person is known and has done good transactions in the past. Just ask questions and be sure of what you're getting.

he said he has to many females breeding and if these tow have eggs he wont have room for the babies. he also said he has other females that need their tubs.

There you go...I would still go with the nicer of the two.

im going with the 1400 gram.

IMO, both of those females are either too young, or too light, to be breeding. They were either underfed, and aren't in proper condition for breeding, or they're undersized. Do you really want to add females likely to lay 6 egg clutches MAXIMUM (Probably 4 or 5)? Small females will tend to lay either small eggs (smaller, less robust hatchlings), or few eggs.

If I were you, I would hold out for something a lot better--females around 2000 grams or more are likely to lay 7 to 8 egg clutches each year.
I wouldn't buy a snake from someone who's been pairing up a female under 1500 grams. I know there are folks who will disagree, and say some females are just small, but I have yet to have a female with normal eating habits fail to reach 1500 grams in 3 to 4 years (and females that are poor feeders are obviously a bad choice for breeding--when dealing with normals, you can't afford not to be picky).
I would suspect such light females are either underfed, or overbred...either way, a bad choice to add to a collection.