You totally ignored all the replies on the compatibility.
They're the same for saloon and estates all the way from the 2.0 8v through to the full fat 2.5 TDs and 3.2. I would wager that hearse and Limo use the same too.
Now you want to save a couple of quid
I hope the autodoc ones turn up and are for both sides rather than 2 lefthand ones., but if they don't it's going to be much more hassle than popping to Sittingbourne.👍
Also don't forget that free postage has a value... The item price isn't always theprice 
The important thing is you're not being totally ripped off by somebody you owe zero loyalty to.
I note your comments DG, but when a web site for a car parts company that I research tells me the parts I am looking for are not suitable for my particular car that I have put full details of in the search, I take notice. I would be stupid not to and argue with them. I am not ignoring the comments on the OOF about compatibility, but when the potential supplier states the parts do not fit my Omega, I have to take notice. I know with Autodoc that their specific confirmation that their product fits my car can be relied upon, and gives me a right of return. The company on eBay that you noted states clearly the parts mentioned do not fit my car. End of as far as I am concerned. Autodoc has given me the option of guaranteed correct parts, from a good manufacture, at a very competitive price.
In addition, Autodoc I have found to be a great supplier for the Omega parts I need. Their service is always great, with the right parts supplied at a very competitive price, as in the case of the product I have ordered, and delivered in good time. The postage of £8.45 for the complete delivery is also very acceptable, especially when I take into account the saving on the product itself. I am still saving money overall, with a great service company, that guarantees the parts are correct for my car, and come from the very European countries, such as Germany, that built the Omega.
Autodoc is a big parts company that I have no loyalty with, but know they do not rip people off as my many purchases prove. But any company can let you down, true, although so far this organisation has not.
As I said, thanks DG for your input