Wishbone Bushes

[Plunky]

Im looking to change the bushes on my front wishbones as the front end is feeling very vague lately....
would these be ok to use on the rear of the wishbone..
http://cgi.ebay.co.uk/Front-Wishbon...arts_Vehicles_CarParts_SM?hash=item1e5adc9cb1

and these on the front....?
http://cgi.ebay.co.uk/POWERFLEX-Fro...arts_Vehicles_CarParts_SM?hash=item1c104808ee

Or should i just get the whole polybush kit?
http://cgi.ebay.co.uk/Audi-A3-Power...arts_Vehicles_CarParts_SM?hash=item1c1072e06f

Cheers

Liam