Oh here's a thought....get a phil and ted off ebay and save even more $$$$
My best friend just did that and found one that was still in a good condition for only about $100... trick is to search words that ppl might have made typo's ie. 'teds' rather than 'ted'. then no one finds them in normal searches and the price is really low....

i like the idea of the saving the money while you use the free one.... if you decide to get the phil and ted then give the pram back to your mum to keep at her house. may as well use a free one while you can.