Thanks for the update re the tie and tape method used.
I have put it away for the time being now and will have a closer look later. What I also noticed was that the motor shaft/UJ is higher than the gearbox/UJ and that the motors double sided tape is quite thick. I am thinking that I might use a thinner rubber base for the motor to sit on in order to get the two UJ's closer to alignment. I know UJ's can work to transmit power when shafts are not in alignment but i would rather get them as close as possible to help minimise future problems. I would then make the bracket to clamp over the top and secure it to the base. I will also put a thin piece of rubber between the motor and bracket to reduce vibration and to also keep it fixed in position.