Hey spacecow123,
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Why dont you get on ebay and buy a scrap one then you have correct caps and some spares left over for other jobs.
http://www.ebay.co.uk/itm/Apple-iPhone-4s-16-GB-Black-Orange-Smartphone-For-repair-or-spares-/271710876958?pt=UK_Mobile_Phones&hash=item3f433af51e
This will give you a rough idea of price, i do this quite often and always use all the other parts left over.
Picked one up last week for £27 inc postage.
When a Bad Butcher has killed a pig you dont see anyone stitching it back together to see if it will still squeek and it looks like butcher been a callin already brother.