I have some usefull info for mk1 owners doing a black interior swap - you can use the handbrake surround from a mk4 Polo, and the handbrake cover from a mk4 Polo, or mk4 Golf (possibly the mk3 too if it has the same interior). It's a slightly different design, in that it's in two pieces rather then one, but other than that they look almost identical and fit fine.
Gives you more choice of cars to strip parts from if you visit a scrapyard