https://www.landyzone.co.uk/land-rover/transfer-box-front-output-bearing-and-oil-seal-renewal.81771/ You will probably only need to replace the seal and not the bearing, maybe the flange. Post a general area you are in, maybe someone close to you.

The Kit I have bought is from a company called Maltings - link below, the kit is not shown on the website, but is available from ebay, if you call them and ask for Luke, he knows exactly which kit it is. https://maltings4x4store.co.uk/