Hey mickey85, that is a great way to convert a LeTour. As you likely know my 1950 Norman Rapide, which has a Sturmey FW hub, is my favorite rider. When I go out on club rides, there are always tons of folks asking questions about the bike and asking about the gearing. When I tell them I'm running a 4-speed hub, they are always amazed and especially so when I pass them climbing a hill in top gear.
I'm looking forward to hearing of more exploits as you have more opportunities to ride the bike in the future.