Car shocks/struts

howdy folks..since so many of u are mechanically minded with all things that steal our money (bikes,cars and women...mostly women)...i got a few questions regarding car/ute shock/struts....so my mechanic told me i need new fronts, and he wants to charge me $600 for a couple , and to fit em..fark that i reckon at the "greeny house of fixing shit" we can sort out the labour (greeny has offered his garage again)... so heres the questions...
1.the car was lowered YEARS ago, but they only put new springs, not shocks (so i think)..should i put a set of "lowered shocks" or just original like its already got??
2. should i put 4 new ones in while im doing it?? i can just buy the front and save abt $50...but if the back ones sjit emselves in 6mth ill kick myself...
3.i can get a set off ebay for abt 1/2 the normal price if i get these "pulled off a car for HSV mods" type deal..surely they gotta be better than my leaking ones..any1 had ne trouble with this type thing??
4. how long will it take to do a swap of 4 shocks approx??
5. apparently the ute has 2 diff types of susp...i kno its not IRS..but how do i determine the type?? (and for this reason should i just do the front??) according to the website i found it should be live axl yea?
the utes got 220,000km and i just want it driveable and safe...
thanks for ur help...
p.s. heres a few links... what ya's reckon??
http://cgi.ebay.com.au/COMMODORE-FRONT- ... dZViewItem
or...
http://cgi.ebay.com.au/COMMODORE-VR-VS- ... dZViewItem
or...
http://cgi.ebay.com.au/ws/eBayISAPI.dll ... 0137140941
1.the car was lowered YEARS ago, but they only put new springs, not shocks (so i think)..should i put a set of "lowered shocks" or just original like its already got??
2. should i put 4 new ones in while im doing it?? i can just buy the front and save abt $50...but if the back ones sjit emselves in 6mth ill kick myself...
3.i can get a set off ebay for abt 1/2 the normal price if i get these "pulled off a car for HSV mods" type deal..surely they gotta be better than my leaking ones..any1 had ne trouble with this type thing??
4. how long will it take to do a swap of 4 shocks approx??
5. apparently the ute has 2 diff types of susp...i kno its not IRS..but how do i determine the type?? (and for this reason should i just do the front??) according to the website i found it should be live axl yea?
the utes got 220,000km and i just want it driveable and safe...
thanks for ur help...
p.s. heres a few links... what ya's reckon??
http://cgi.ebay.com.au/COMMODORE-FRONT- ... dZViewItem
or...
http://cgi.ebay.com.au/COMMODORE-VR-VS- ... dZViewItem
or...
http://cgi.ebay.com.au/ws/eBayISAPI.dll ... 0137140941