I can't achieve power seller status as most of my items sell abroad. Should I block international buyers to get this as I would be top rated

There are other criteria to qualify for  TRS

http://pages.ebay.co.uk/help/sell/top-rated.html

what does it say on your seller dashboard

http://pages.ebay.co.uk/help/sell/seller-dashboard.html

I have to agree with the above comment, by blocking international sales, how would you increase UK sales by doing this

The links given above will help you.  One thing to bear in mind is that if most of your sales are international then blocking international buyers is likely to have a significant and adverse effect on your income, something that would far outweigh the very limited benefits of top-rated status.

________________ I bid, I win, I pay - you deliver

Your items are already visible on the UK site as well as worldwide. Maybe they are just more appealing to overseas buyers.

If UK buyers wanted to buy them, then they would do exactly that.

If you limit yourself to UK only, when you have clearly identified that your market isoverseas, then why shoot yourself in the foot for TRS in the UK

You can qualify for TRS on other sites from the link I gave you earlier if you generate enough sales overseas

I see your point, it must be frustrating, as it states here that you need to be a powerseller in UK

http://pages.ebay.co.uk/help/sell/sell-powersellers.html

I never look at Top Rated Selling status when it comes to collectors' items, which appear to be what you sell.

I do, but not all the time, for new technology.

Really, I wouldn't be bothered if I were you, it's not as if the nice plane model you have currently in your listing, not a collector myself, but a friend of mine is mad about them, I guess that's why it's what attracted my attention, is likely to be found somewhere else.

People coming to you will be looking for quality of the item, not the number of feedbacks you have or your status, not as the main judgement criteria

I'm fluent in Italian and French, speak decent German and Spanish and understand Dutch, please feel free to contact me if I can be of any help