Build a Website or Wordpress plugin or Greasemonkey script for Firefox

I'm looking for somebody who can make a script for me to use at home (Firefox Greasemonkey for example) or online (Wordpress plugin preferred) but it can be anything else that you can upload on any free-host. I'm looking for solution to my issue here: Example listing: [login to view URL] When I go to the listing I can see in the search the prices are between £0.99 an £3.95 Than I have to go through the variations to find the one that is actually for £0.99. In this example it's the Black in Size UK 6,8 - the "variationId" from the source code is: 420773482778 This is the bit of info I'm after the most. Because from this I can create a link [login to view URL] That's the link for the cheapest variation. I want to be able to put the ebay item number (121781810270) into the search on the website hosted on freehost and get the link to the cheapest variation. If you're good enough I would love to have more info in the output: The link: [login to view URL] Price: £0.99 Variation1: (Main colour) - Black Variation2: (Size) - UK 6,8 Picture of variation: (only black square in this example) Even better (if that'll be possible) to get this informations for all the variations into some kind of table (35 in this example) Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture That was an example how I would like to see it on the website. If that isn't possible I'll go with the script in Firefox. There I would love to come to the the link [login to view URL] and it will somehow read the source code and show me the table with the same info: Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture Link | Price | Variation1 | Variation2 | Picture This is the part of the source code that contains the cheapest price and the Variation's ID: {"Main Colour":6,"Size":11},"inStock":true,"variationWatched":false,"watchCountShown":false,"maxQuantity":0,"convertedVatPrice":null,"minAdvertisedPrice":null,"vatPrice":null,"watchCountMessage":null},"420773482778":{"price":"£0.99","soldOneBay":false,"soldOffeBay":false,"lastOne":false,"almostGone":false,"watchCountHot":false,"convertedPrice":"£0.99","pricingTreatment":"NONE","minAdvertisedPriceExposure":"NONE","originalRetailPrice":null,"savingsPercent":null,"originalPrice":null,"varationInCart":false,"quantity":62,"quantitySold":59,"quantityAvailable":3,"watchCount":23,"variationId":420773482778,"amountSaved":null,"traitValuesMap": If you've made it here, thanks for reading the whole and let me please know you've read it starting the cover letter with I love variations. If you're not willing to read the description I'm not going to read the cover letter, I'm sorry. Let me also please know if you've done anything similar before and if you can give me the link to see it. You'll may have a better idea how to do it and I'm willing to listen to any suggestions, don't be shy :) Thanks again and I hope we'll be doing something great together soon.