I drove my 95 Tahoe for 2 1/2 years before I did my SAS. I collected parts over that time for good prices. I figured if I did the SAS i had them already, and if I decided against it I could sell them easily enough. Eventually the IFS started needing a lot of maintenance as the miles piled up. I compared the price of that vs finishing my pile of parts and went the SAS route. Now I went all the way on my Tahoe, as I didn't want to cut corners and previous builds had shown me what worked and what doesn't. That being said I spent around 6K or so on it. In another post on here I listed things that I could have cut off and saved about half of that; sway bar, dual shocks, traction bar, alcans, and so on. I could have done it for far less and swapped in the upgrades later. With all that said, my truck handles excellent. It is a little stiff with the dual shocks and the springs meant for a big block that isn't there yet. I can drive down any highway at any speed with one finger on the wheel. It drives straight, doesn't wander, no sway, controls bumps,...overall everything far exceeded my expectations.
One piece of advice, don't let planning for the next project keep you from enjoying the vehicle now.
Oh, and the H2 is a 99-06 Tahoe chassis, and the tie rods are almost the same as yours and mine were. If you want to upgrade those look into bullet proof steering. Even the 1-ton trucks snap them and theres are marginally bigger. Watch enough diesel drags in 4WD at the strip and the above video is a common sight.
Any questions feel free to ask and my build thread is in here under 95 2 door tahoe sas or something close.
-Alex