if You are not in a hurry with these bushes, it should be no problem to build them for Your order, but using polyurethane material in my local manufacturer. They can be the same stiffness as original rubber, or stiffer, as You wish. I have just ordered PU bushes for my 33's(fwd) rear linkage and the only problem is they have so many orders now, I will have to wait 3 weeks.
As You can see, "soon" could mean 4 weeks in this case , as I received my bushes a week ago. Unfortunatelly it results more than 8 weeks in total, since order placed. Ok, You can check how does it look like on attached photo and I think I have no doubts of them. Are You still interested then? If yes, I prepared some remarks:
1. Please confirm we are talking about the part number 14 on the attached diagram.
2. You will have to be prepared for the time of order - it may be counted not in days, weeks, but months, especially since we have vacation time now and on the other side I have to ask my collegue to send me Q4 tie bar.
3. Probably You like to know the costs before. It is hard to say, but max limit were defined to 17€/pc. My cost is the parcel with sample (7-8€)rod and the delivery to Norway via national PL post is about 15-17€.
4. Default colour is red and default stifness is 80ShA, which should be equal of the stock bushes, but I think the material is a little bit stiffer AND there is less poly-material than rubber in stock bushes, so it finally should be stiffer than stock ones in my opinion. You can choose Your own stifness and colour if You like, but defaults are always the cheapest.