I think you should take your gearbox out and send it to be fixed as the one you are showing I don't know the guys they maybe fine but the same phone number is showing the same part number gearbox for a 1.5DCI. And anyone can say a gearbox has been reconditioned its hard to tell how well or at all and by the time you buy another box ship it and fit it along with a new clutch and where you are located is a big chance I thought Jersey was 40MPH hard to break a 4th gear. I thought there was a Motorsport place near Gatwick that rebuilt the gearboxes and the eBay adds had a gearbox that was aqua blasted for extra charge might be worth a ferry ride out of season so sort all problems. If yours is a 200 the box it will be a 024 or a 031 box more likely a 31box the gearbox model is etched in the end casing. The logic will be why would anyone remove a good gearbox and if taken from a damaged car how do they know the gearbox is good. Hope someone else on here can suggest a good source France might also be a possibility for repair as at the end of the day it's a TL4 gearbox.