What sort of rear shocks?

[VEEMAN]

Can anyone put me in the right direction with regaurds to rear shocks for my 1303.I have fitted adjustable swayaways to the rear,but am a bit concerned about the rear arches catching when someone is sitting in the back.By the way the rear arches are not stock but are from a kit.I also forgot to mention I have Minilite Supersports 7 x 14 rims shoed with 235x60x14 on the rear.
The tires used to catch when I had the stock 1600 engine in it,but now there is even more weight in the rear because of the type 4 2.4L plus Porsche 901 box in the rear.
So my question is what do you recommend in the way of adjustable coil shocks for the rear.If this is possible is there any clearance difficulties with the A arm around the bottom shock mount.
Any suggestions on the way to go? or makes of shock that can get me over this problem
Cheers
Veeman