@sbrana: nice talking to you the other day.
I think you should give some options compatible to the bike available at sales outlets as a separate purchase, e.g. many people want alloy wheels and will be looking in the open markets where they will find products which will not fit and will be making alterations to fit resulting in unknown problems. Instead if we see alloys at the outlet we can opt to get them fitted from your mechanics trained specifically for this bike.
Similar options could be for luggage containers, tubeless tyres, wider rear tyres, etc.