I bought these a while ago with the intention of restoring them and fitting them to my car, i bought a set of stock supra seats with the intention of removing the rails, and fabricating a runner for them. Both sets of rails is included, or you could obtain the Bride runners which i am told fit.
As can be seen from the pictures, they need new bolsters, these can be obtained here:-
http://www.capitalseating.co.uk/productdetail.asp?pid=423&type=s&appgrpid=14&appid=76&rid=
I estimate you would need a lower left, right and complete upper (one of each in the list) costing approx £103.82
I marked these down as 'collected' but could arrange local delivery, or you could arrange a courier at your own expense/convenience