MrL did ours a few months after we moved in - ours is a Rayburn Royal too. Rayburns aren't designed as woodstoves as such, though, they are solid fuel. We were quoted several hundred pounds to convert ours back to solid fuel (it was originally, but the old couple who were last in the house had it turned to oil as they got older), but MrL got hold of Spillers of Chard (they have a website, and very helpful with questions, etc) and bought the bits for 124.00. I don't know if our kitchen chimney is lined or not - it may well be if it was required when changed to oil, I'll have to check on that. He took the oil burning gubbins out (I wasn't around, so not sure exactly what was removed regarding wick things, etc, but I can ask him), removed the piping, then put in new fire bricks and a grate to fit, and off we went , but we've been burning anthracite. Never had any problems with it at all. Recently, we've been going over to wood, and I'd like to eventually run it on wood entirely, but as said above, it will take a heck of a lot of wood to keep it fed. Soemr ecommend using wood for cooking, then banking it up with coal/anthracite overnight to keep it in,r aking it through in the morning, and off with the wood again. It burns the wood very fast, and gives a fierce heat - the water comes out the taps almost boiling Because of the high heat, it seems to be getting through teh firebricks quicker too, and we will need to replace some of them soon too. It's possible to DIY, but MrL is an engineer, so knew what he was doing - not saying MrK doesn't , mind. I'd be a bit wary of DIY in a rented propety maybe? It needs firebricks whether burning oil or solid fuel - quite easy to get hold of, also the grates. We get orus in Mole Valley Farmers, so a crofting supplies or similar up where you are should have something maybe.
Will quiz Mr L about the liner bit when he gets back, also about what he took out. Ours does water, heat and cooking. Most folks gave us 6 months, saying we'd be back to oil. I'd never have anything else now, though, and if and when it needs replaced, it will be with a wood burning stove.