Reciprocal links required - London related ONLY

I am looking for a partner to attract 30 websites to do a RECIPROCAL link with my site (PR3) The sites MUST have a tourism connection with LONDON BUT they must NOT be advertising accommodation. I can place links within 12 hours of your email and then you'd verify our link is in place also. My site is [login to view URL] Their links will go on: [login to view URL] For any LONDON related site with PR4 or above I would ALSO link from the front page of a PR5 site to them For purposes of this campaign I can supply a marketing email address My budget is $60 for 30 reciprocal links