Redvers B

I have a Hornby tender drive Flying Scotsman and wondered whether I'd be able to convert to loco drive by using the chassis from the Hornby Railroad version.  I'd prefer to keep the old body due to the better lettering and a few other details.  Does anyone know whether it would be a straightforward swap?

Thanks

As the cost of converting my loco's to DCC makes me break into a sweat, I've pre-ordered the HM 6000. I like the idea of being able to roam, listen to the admittedly limited sounds (though will probably play through a bluetooth speaker though rather than my phone or a tablet) and with the added bonus of a track planner. However, after downloading the app today and testing the track planner which immediately froze, I'm not sure I've made the right decision. I just hope any bugs in the app will be ironed out quickly.