Sure Colin - no problem. How hard it is to get the pins out depends on the amount of flare. The pin is peened-over at the end, causing it to swell. If a washer is under the peened head it helps to reduce the flare a bit, but the pin can still flare in the hole in the scale, making it very hard to remove. The older type with larger than average pins and no washers can be a real swine! Don't tap on regardless, or you risk the scale splitting. I use a bradawl filed to just under 1/16th at the tip. If after you have filed the head off the pin it doesn't want to move with a few taps, you have to reduce the flare. If you have a pillar drill its not too hard, but without one (and even with one!) you risk the bit slipping and gouging the scale. A dremel-type tool with a small round diamond ball tip can be used to make a cup in the end of the pin. Sometimes that is enough - the flared sides collapse into the void, but if they don't you have a pilot for the drill bit.
When you come to pin the scales back on the tang - and if you haven't done this before - practise pinning a couple of lolly sticks together to get the feel for it - when you can do it without the lolly sticks splitting you will be ready to tackle the razor!