I think altoon is trying to say don't buy used because they hold their resale value. The price of a used one will be close to the price of a new base model. He's saying buy a brand new access cab base model with $10K down and finance the $14k.
By the way that will get you a SR access cab 2x4 manual with no options. The 4x4 base models with no options are $28k. You might get one for invoice and save $2-3k if you are a good negotiator.
With all that said Skaf was asking what to look for in the old trucks and what the difference is between the TRD and SR5 packages.
If it's a gen1 with the 3.4L V6 they will go over 300k if serviced well so 194k miles should still have some life.
1. Look for leaks, engine oil, diff oil, check all fluids.
2. Look for rust on the frame toyota just recalled a bunch of the older ones for that.
3. Service records, does it have them, check the VIN # with toyota if it was serviced at the dealer they will have records.
4. Clean title
5. Test drive it, not just around the block once. Take it on the freeway, in town with stop and go, reverse make sure you like how it drives.
If it's a manual you can check the transmissions gears by putting the transfer case in neutral and taking the transmission through each gear listening for anything that sounds out of the ordinary, whining or grinding, keep the brakes on.
6. Don't buy it if you don't like it.
7. Do some research, kbb.com and NADA.com know the value
8. Be educated and negotiate
TRD off road has upgraded off road features, rear locking diff, off road suspension and TRD stickers.
TRD sports have a fake hood scoop, sport tuned suspension and TRD stickers
SR5 has A/C and power options.