It is highly questionable whether they could ever have made it to Le Bourget – regardless of the number of functioning engines or the position of the landing gear.
This simulator training mind set is still with us today; because if you don't get the airplane on a runway then you fail your sim check.
The Concorde only achieved 200' altitude [lower than the height of the air traffic control tower], and the copilot had warned Capt Christian Marty at least three times of decreasing airspeed....but Le Bourget runway was in view only 7 miles straight ahead.
My take is that the airplane should have been landed on a farmer's field straight ahead. It would have been a controlled crash, rather than an in flight stall and uncontrolled crash.
There was no logic in attempting to stay airborne without sufficient airspeed.