Okay so i have now made the basic shape for the shoulders, just need to cover in fibre glass and paint.
I haven't used fibre glass before so that should be interesting.

I have also created the basic shoulder/chest/back armour. And for what look like jets on the back of her suit i used two bottles and will cover them in foam/fibre glass/paint.

Also done most of the shape of the helmet using old bike helmet, and basic shape for arm cannon.

And I am enjoying it muchly

Spenditure roughly so far:
£32 - craft foam, glue, wadding
£10 - foam balls (two big, 3 small), roll mat
£23 - Loft insulation foam, knife
£20 (?) - fibre glass, stuff for fibre glass (my parents bought for me )
already had bike helmet and other blades
Total so far: £85

Still need to buy: paint, LED's, batteries, stuff to make the LED's work, hair bleach, under clothes to attach costume to

Deary me...