Hi Tel,
I used a VR HG kit from Euro a few years ago when I was working on my 944S engine. The kit appeared to be of a high-quality, everything fitted nicely and to date I have not had any issues with any of the gaskets used. I am not sure if VR are an OEM supplier for Porsche, they may be..
Hope that helps.

I would also do the oil cooler gaskets while you have the engine stripped, I didn't..and regretted that choice bigtime! It is a difficult job to do when everything is put back together

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Oh, I also noticed that you needed a lower balance shaft cover with PAS bracket. I have one on my old S engine block. This should be exactly the same as an 8V 2.5 one as only the head was really different, I think the block mechanicals pretty much stayed the same. If you would like me to take it off, etc. please PM me.