Cut springs, unless done properly (funny that.
), can do a lot of damage.
If they're too short, they can dislocate over bumps. If the ends aren't cut square and then have the edges de-burred (maybe even a slight chamfer on the edge) the sharp edges can rub holes in your suspension cups. There's no real way to know just how much you're taking off the spring either. The equivalent length of sping cut from the coils doesn't equate to the same amount of suspension drop, plus the spring rate goes up iirc.
Ok, that's the negatives. If done properly, wired into the cups to stop them popping out, no sharp edges left etc. it can be fine.
But to be honest, it's very trial and error, there will be a lot of faffing to get the springs on and off the struts, then the struts back on the car, cut more off, re-fit etc.
Personally, I wouldn't say it's worth the effort, if you go too short, you'll need new springs anyway.
Anymore than an inch down iirc and you'll get issues with ground clearence, mostly on the exhaust.
Someone here might have some springs for sale, but personally, I'd wait until you can get proper lowering springs. Though that said, our springs are so old in some cases, they've sagged more than an inch anyway. I know that my lowering springs on the front have put the car pretty much exactly where it was before, but a hell of a lot stiffer.
That's my take on it anyway.