Locking wheelnuts

Hi,

I have a Punto Mk1 (97) with some alloys with 100pcd, thus using wobbly bolts, however I have just found that my locking wobbly bolts have been cross threaded and now need new ones.
Being low on cash, is it possible to use normal locking bolts along with the 3 wobbly bolts already on the wheel?
I have read in places some people say its ok, yet other say to deff not do it.
What is the verdict? Can I go for standard locking bolts or go for wobbly locking bolts?
Also where is best place to get locking wobbly bolts from? Last set I got from Ebay and dont really want to buy them again as these have gone after just over 1 year.

Regards
Werner

Just a little update, I have now fitted standard locking wheel nuts and they seem to fit alright. Have driven some distance on them and my wheels are still holding on and there is no sign of the standard locking wheel nuts coming undone or any bad signs.