Polo eBay finds/marketplace

Those forks don't exist. You won't find a canti fork with less than 43 rake as there's no mass market use for them; you'll have to go custom or get some carbon/alu track forks, man-up and stick with the caliper.

i'm sure max power said he does 700c forks, not really off the peg but cheaper than custom. #mightbewrong
edit:
http://www.maxpowercycles.de/wp-content/gallery/various-bikes/418786_3426229215349_1258848692_33541667_2119018972_n.jpg