Hello M-Chassis fans!

I've recently put together my first fwd mini, an M-05 Pro Gold Edition.

This thread is long, and there's a lot of advice, some of which is very contrary to other guidance, so I'm resorting to some help for this particular setup.

What I've got:
The Gold Pro chassis built stock
5400 Aluminum dampers
TA03 ball diff
Ride 55m belted hard and medium compounds

It will be raced on fairly rough parking lot tracks with soda sprayed down. I don't want to spend any more on upgrades right now, as it's just for occasional use when enough mini owners bring them out.

A few other questions beyond help setting up the car.

Do I add a spacer/shim here? The gold kit seems to not have anything shorter.



Besides the springs in the kit (blue and yellow) it comes with these bright red ones. Any use?



Here's the tires I have besides the S-Grips I could use. They are used on a 225mm touring car right now (RIDE pair of hard & medium):



I put 2mm spacers front and rear between the links, and otherwise it's set up box stock. Curious which oil weights, spring combos, and spacer settings to use for the best results? Ride height too for asphalt (rough.)

Thanks!! It's been a confusing journey piecing this project together and I'm as lost as ever! ha