I phone 4 32gb ..mint.. Or a swap +

Hi I am selling a I phone 4 32gb on gumtree I am getting rid of this because I dont need it any more as my brother got me a I phone 5 and the I phone is in good condion and the only problem is that I dont have a I phone battery and and a battery cost from 10~20 and instead of me getting it I am just selling it for this much...thank you for seeing and I am opend to swap aswell only for a samsung galaxy $2 or blackberry bold 9900