Rear Subby,suspesion And Radius Arms Advice

Hi all I have a 1991 rover mini 998.

The rear sub frame has got a hole in, the front suspension has collapsed and the radius arms are knocking a tad so I think I need to do a bit of maintenance lol.
I’m pretty confident in doing the work, I would just like a few thoughts on the parts and which ones to go for.
This is my list so far;

• Front and rear hi-low kit
• Knuckle joints front and rear
• Cone spring X4
• Rear sub frame
• Rear sub frame bush and bolt kit
• New handbrake cable
• Radius arm repair kit
• Spring compression tool

The shocks on my mini are Spax adjustable and have only done around 20’000 miles so I am going to put them back on and changed them at a later date if they are noisy.
Now is there anything else that I would need to complete the job or is there anything you would recommend I do or get? I checked that all the bolts on the subby are free yesterday and gave them a good dose of WD40.

I have read that people greatly recommend using genuine cone springs as they give a better ride and do not sag so quickly so I think that would be money well invested. However what are people’s thoughts on non genuine sub frames and hi-low kits as there is a large difference in price. Is the ride so different with the non genuine hi-low kits and knuckle joints? Or is it the quality of the parts?
Also with the sub frame bush kit would people recommend using the rubber or polyflex?
And one last thing (I promise ha-ha) is the radius arm overhaul that much of a job that I should just bite the bullet and get a exchange unit?

Thanks in advance for any reply’s and sorry for all the questions, just thought I’d get it done all in one : )

Pete

Drill bits and a tap and die set or the right tap for the subframe mounts.

Just stripped and refitted a subframe. Ended up we had to reweld a couple of captive nuts plus we chased out all the threads to clean them up.

Tin of copper grease for reassembly

Radius arms are not as easy to rebuild as some people will lead you to believe firstly you will require the correct tool to gain concentricity between the bush and the bearing, if you fail to do this then you will be doing the job again next year…