As far as I remember when you have split the engine from the gearbox and undone the set bolts, it came off with a three leg puller, as far as the wheels are concerned i know a man who used Land rover wheels and 750×16 tyres, no need to weld the centres on, they were bolted on to the wheels originaly, the land rover wheels and tyres are cheap as chips on that well known auction site we are not supposed to mention! or there will be plenty at your local scrap yard. best of luck.