Only if you are planning to keep the car, as that way you probably won't ever need to change them ever again.
However, you have at least another 50,000 miles or a few years left on your existing plugs, so I would tend to leave well alone.
I don't think that will ever happen so,
Concentrate on handling and brakes:
KW V3s and Eibach sway bars would be a good shout.
If you require correction arms then SPL is the way to go.
Power grid adjustable drop links.
Bin the pop charger and reinstate the OEM air box with a suitable filter and maf sensor.
Some DBA T3 rotors and Carbotech pads with a suitable compound for your needs and some high temperature fluid and braided lines.
Scorpion exhaust or similar with suitable sport cats or decats.
Finish off with an Uprev tune after you have completed your mods.
Going by your images the roof is beyond economical repair and it will never be perfect due to the size of the repair.
You will require a new roof skin and a new A-pillar trim I am afraid.
I am dismantling a red 350 at the moment so I have all parts in stock at the minute, including the windscreen etc.
When was the last time that you had a proper 4 wheel alignment done?
The best tyres in the world will not keep your car in a straight line if your geo is out.
Same goes for excessive play on your hubs or your tyre pressures etc..
i would certainly get the above looked at as a matter of general routine maintenance, before or at the same time as the new tyres are fitted.
At 18:08 on Sunday you mentioned that you might buy Pirelli:
At 19:15 on Sunday you were advised to buy Michelin.
I would consider that a quick informed response.