are you using the standard strut?

NO, lots of mods.

i have stanza struts in my car, with stock 1200 springs and some pedders gas inserts
it sits higher than standard as the struts are longer than 1200 ones and therefore has positive camber

NO OFFENCE BUT THIS IS NOT A GOOD THING. The geometry of you chassis will be changed for the worst. Its a good idea to use longer shocks but the length must be allowed for up top not down at the lower control arm.

i need to get lower springs (possibly harder too) to bring it back to normal height, but then need a way to adjust camber and castor, are you in the habit of making and selling stuff?

Be careful that once you have your new springs that they dont bottom out in the damper because the damper stroke might crash because the damper is already preloaded in your possible set up.
I sometimes design and build stuff for others but I'm sorry to say that I'm flat out with my ARC committments for this year anyway.

are th LJ toro castor rods bolt in? or do they require a bit of mods, i was thinking of getting an extra 10mm thread machined in my castor rods shank for a little castor but though this will probably just load up everything else by pulling it forward and make it weaker, thats why im after the strut tops

LJ rods need a little work but not much, just redrilling holes to large size and do a little cutting. Once you have a pair in your hands you will see what I mean. They are hard to find so good luck. They are also longer and have longer threaded ends for better adjustment.

ive also been told to just redrill the botom arm mount about 10mm out and weld up the old holes to hide em, to achieve some camber

I wouldn't do it that way, why dont you get rose joints fitted to the inner lower control arms, this will give you the camber and its a much better way of doing things. The rose joint will take any adjustments you need for you cambers as well without placing undue load where it shouldnt be.

i hate it how the legal way is soooo much more expensive

Yep me too mate but thats just how motorsport is.

Your suspension travel needs will always depend on the condition of the stages you compete inn. 1200 rally cars like having their ass lower to the ground because it helps with rear wheel grip. Remember you are limited to useing the shock rear beam arrangements under the rules of rally.