need help or Mobile mechanic Birmingham

[scorpio]

I have been doing some work on my 75 and it needs a new track rod end, so I brought one and tried to fit it. Well due to arthritis and a dodgy knees I failed I just dont seem to have enough power to get the locking nut lose to remove the old one.

I am willing to pay anyone that can change it for me, the car is on axle stands and the wheel is off and its in my garage but without any strength it is going nowhere.