Hi Bachus,
I think there's literally 1,000's of conversions out there, but quite a few of the ones I came across were not all that good. Some needed a fair bit of work to make them useable.

Where possible I try to stick to factory styles , even they sometimes need a bit of tweaking between different models. Fortunately there's a heap of PSR factory styles around too.

Must admit I find it easier to do the type of converting I do for the korg, than I did for my PSR.