I'm starting a build a mk3 city, with a g60.

I got original g60 head, I sent to service, and I need new valve guides and seals. we saw it is 8mm guide. I was googleing for original part number, but I cant find them, does anybody has this parts numbers

also, was looking at my engine block, and I was loking that is it very similar to a 1.8 8v mk2. does anybody have tried to use this block with a g60 ? do I need to modificate the block ? g60, alternator bases, lines, watter system ?

thanks