Making life a little bit more bearable

So I have a simplicity 175 and Iam going to just going to be honest:
It's an absolute nightmare when it comes to off road driving.

I added 22's in the rear and airing them down really helped.
Iam still running 15's in the front which will need to be changed to 18's so I guess that'll help too.

Now I am just wondering what is the best bang for your buck when it comes to creature comfort?
Would maybe notching the front arm out a little and adding some shocks make enough difference?

Iam really partial to leaving the mower stock looking but I can hide some shocks, a 5 point not so much

I have suspension on the front of 2 of my tractors.  It helps a little.  Biggest help for roughness I have done is run tubes and about 5-7 psi on my rear tires.  My latest has the old school C seat spring.  It by far is my smoothest tractor.