Bought this little set off a guy on Craigslist in 2009 for $50, to carry on the road the only thing they haven't fixed is a flat tyre.
I love my 18v cordless impact gear. Gasless welding is shit. You can buy disposable gas bottles, no rental
All my tools are good some may not get used as much as the other tools but they are all needed
Find yourself some old bbq with wheels rip out the plate,burners,knobs anything to lighten it up replace the top with a bit of MDF and you end up with a top mobile workbench/mobile bar for refreshments after ya knock off and if you add a multi power point you can run tools also.And the tray under it is a top spot for tools in a box/ esky or get some angle iron and build draws ect.You could even cut a slot for a circular saw this is is one of my most usefull tools I realy love due to lack of space,lighting and shade.
Just seen the latest specials on bike lifts at SCA. $90. can't go wrong.
http://www.supercheapauto.com.au/online-store/products/SCA-Lift-ATV-680kg.aspx?pid=284935#Cross
Possibly the two cheapest things you need are;
Duct tape if things are loose and shouldn't be and WD 40 for things that aren't loose, but should be...