evenin all. can anyone tell me if its poss to change my 91 ex mod 90 to p.a.s . A. has anyone done it? B. how much? C. is it a n.mare and where to go for the bits etc.

hi everyone. managed to log on much to my amazement! i"m a bloke from derbyshire livin in C.I.s just got a new old toy. (91 ex mod defender 90) chuffed to bits so far.:D