Make sure to not go into light alloys if you don't have good roads. From my motorcycle anecdotal experience I've read plenty of people that ended up with cracks in forged magnesium wheels.
As for springs, it's a pretty easy job but make sure to get the spring compression tools, they're dirt cheap and making your own isn't worth it.
Speaking of tools, if you don't have one make also sure to buy a dynamometric wrench. Sadly, if you want to do very different things (like frame and engine) you'll need two, one in the 2-25 Nm range, and one in the 10-250 Nm range. These are probably the most overlooked tools someone should own.
And an air compressor with pneumatic impact gun is always a godsend when you find that fuarrrking nut that won't come off no matter what (which is every fuarrrking frame nut and bolt ever), but be sure to not use it to actually tighten soykaf, or at least pay attention to it because it's easy to overtighten them (especially the wheel bolts).
If you can't afford that right away you can always get a manual impact driver and a hammer for about 20 bucks, even that will save you a lot of headache.
You'll anyway need a compressor to adjust pressure in the tires, and you don't need an expensive one. What you need is a good tube and good fittings, the stock ones are always about 5mm inner diameter (at least here) and that's the way to make an impact gun work like soykaf.
The one thing you don't want to cheap out is wrenches. Don't buy one of those adjustable spanners and think it will be good for everything, fuarrrking up a bolt is piss easy and it will be a pain in the ass to fix. Fortunately, it's pretty hard to get soykaf wrenches, I only had a couple fail on me in over 10 years buying el-cheapo brand tools.
Motorbikes are somewhat easier to work on since most of the parts are very light and don't require any jack-tricks to put on/remove.>>2193
old shock absorber fluid has the most disgusting stench to be honest. It was almost on par with that time when my engine was filled with wd40 and smelt like burnt death for a week. Even for a two stroke that was too much.