Straight_4_N/a

As aboveive currently got braided brake lines for my std caiplers (st170 caiplers) but im going to upgrade to high spec 4 pot caiplers and i dont really see why i should spend £700 on the kit from them when it only costs me £300ish for just the caiplers and brackets as im using the same size disc, Now the problem ive got is my current lines wont fit the 4 pots as thay have a diffrent type of fitting,

So my question is are there any fitments out there that i can fit onto my current brake lines to make them match the ones needed for the caiplers?
Or could i just cut the ends off my curent lines and fit these?
http://www.rallydesign.co.uk/product_info.php?cPath=562_85_248_249&products_id= 1534

I know im sounding like a cheap git but i was just wondering where its just a smiple £6 fix or £130 for new brake lines :/