there is this one herethat will be double your filtration needs, your pond is about 1200 litres this will do 3000 you can also have a choice of a fountail or connecting a waterfall
you can get it for about £80 - £90
I wouldnt bother cycling it at all, just add your stock slowly and keep testing the water
i have found out of pond UV filters to be really good for ponds. We've gone through SO many under water filter+pump combo's over the years that it got ridiculous.
for our 200 gallon pond we have this pump:
http/www.hozelock.com/aquatics/pumps/filter-pumps/titan/titan-2000.html
and this filter:
http/www.pondkeeper.co.uk/prodpage.asp?ProdID=340
I can walk you through building your own with a plastic storage container, very cheap very easy and your water will be crystal clear after it cycles . I can post pictures of one of mine if you are interested.