Most of these are easy DIY fixes. You'll find tutorials on the net to walk you through them.
But I get the feeling you haven't spent a lot of time on the tools, so you probably want to call over a mate who has.
Perhaps someone from the Newie crew can spare the time to lend a hand and show the way if you supply the beer/bbq?
Generic and genuine parts are cheapily available from ebay or suzistore.
- front hub seal leaking: Grab a full hub rebuild kit and do it all while you're pulling it apart. It takes an hour or 2 to do a sierra hub including axle seals, wiper seals, felts, kingpin bearings etc. And about $60 in parts.
May require some tools you don't have, like circlip pliers and 50mm hub socket.
http://www.outerlimits4x4.com/ftopic127 ... ght=swivel
- exhaust leak: Take it to Newcastle Muffler Service at bennetts green. They're cheap and do good work. I find exhaust work to be frustrating so I palm it off to them.
If it's just a gasket or something simple you can buy one and whack it in, but with the other rust issues you've been pinged for, I dare say rust might be the culprit here also.
- Uni joints are $30 each, specific to your vehicle model (nt/wt sierra) and take around 1/2 hour if you've never done one. Will require some tools you don't have like circlip pliers and a big g clamp or vice.
http://dodgeram.org/tech/repair/U_joint/repair.htm
All the rust can be tricky, it might just be a bog and paint job if you don't care for the car, or get a mate with a mig to give you a hand doing some fab work.
'95 Maruti lwb, 1.6GTI, 6.5:1, locked F+R, SPOA on 33's.