Thanks for all your invaluable input. It really is helping me to reach a decision
The thing is you are ALL correct in what you say, with DG, Nick, James most recently pointing out the car will self destruct, and our Omega's are now not worth putting large amounts of money into, and whatever I do it will never be enough. So these guys say spending £1,000 to treat what is a very small amount of current rust, but which would greatly limit it's spread, although it and other parts of the car will continue to,suffer from rot, is a waste of money due to the car being 16 years of age. They are so right! That to me is so logical
Then Dave, Jonnydog and others previously are also right in reinforcing my love of this car, it's personal value to me - forget the £,s,d - the fact it is still going strong (touch wood), has had Serek do some major mechanical work on her, and i have kept it going in my way, which I can do on this car (maybe not another one); in short I love it, it fully meets my needs of the next few years and I must keep her going. It is though illogical to throw more money at a 16 year old Omega that is showing just small signs of bodywork deterioration, which WILL in spite of all my efforts continue, but that can be controlled enough to slow the destruction of this beloved car down.
So, decisions, decisions. Time for logic, practicality, and realism.
I cannot afford the £1,000 for some time,,and now I am deciding NOT to have that work done. I will now do the small amount of work, costing little, treat the areas discussed with Supertrol and the Bodywork Wax product I have ordered to keep her going for as long as I can, but accepting NOTHING, as with human life expectancy, is guaranteed. I will keep maintaining her well mechanically so to try and ensure she keeps going, is legally compliant, safe and can perform at the standard I want. But, for me the car is not everything in life, far from it, so I will cut my cloth accordingly.
If everything falls apart before 3 years, then, even then, I will consider this car gave me the return on expenditure to justify it.
Thanks again all for your wonderful input and being realistic