Okay,
So, if you want Western… look at WABECO, followed by OPTIMUM. Both in the bigger size range.
If you are looking at Eastern, you have ruled out SIEG, and you are looking at Chester and Warco to work with. Both are good companies, based in the U.K., offering U.K. based support. All companies come with their own baggage, every machine will come with its own niggle, and every person has their own experience with the supplier they choose.
Generally, looking at your budget, after considering workshop space available, ideally you should consider a mill – square column with dovetails, with R8, belt drive, brushless motor or three phase motor with inverter.
You seem to have very good knowledge of vehicle/bike restorations, and your DIY set-up of 3 phase motor and inverter for your myford looks impressive. This suggests you have a reasonably good electronics background.
However, your knowledge of lathework and milling come across as limited. I say this with respect. We all have our areas of specialisation. Reading your earlier posts, I think perhaps you will be happier with WABECO.
Either way, regardlss of which modern day machine you choose, I would suggest you consider reading back issues of beginners series on lathework and milling from MEW issues 260 onwards, written by Neil Wyatt (lathe) and Jason Ballamy (milling). This was sponsored by ARC. ARC gave the machines and the tools to Neil and Jason, to enable them to write articles on how to use the modern day Chinese machines and tools in general.
This series was commissioned/sponsored by us because earlier books on these subjects are written based on old gold myfords and bridgports. Nothing wrong with that if you have or are intending to buy those machines. The key difference is that they were written by engineers for people who had engineering knowledge or came from an engineering background. As sellers of machines and tools, our findings suggest that most of the current generation we are dealing with has no or limited engineering knowledge, especially on terminology relating to a lathe or a mill, let alone how to use a modern day machine. Many refer to advice on You Tube, which can be good, bad or ugly.
Clarification / For the record / Disclosure: These machines and tools were given 'for free' as payment for Neil and Jasons time to write such articles. I sometimes get questioned about this. My reply: Their time investment on the projects would cost more than the cost of the products which we gave them. I know that many of the old titles were sponsored/commissioned by the machine makers of that time. I do not expect them to work for free. Both Neil and Jason are well known in the modern model engineering community. Both have knowledge and write honestly about their experience, and limitations of the product being used.
So, stop procrastinating, get your measuring tape out and visit EMCO, Warco, Chester and make a decision. 
Ketan at ARC.