I'd say you can't go wrong with OEM+, a high-quality suspension at a reasonable height, and a good aftermarket wheel/tire setup from a respected brand. Literally everything on my car minus the Tein coilovers with EDFC Active Pro, Rotiform wheels, and Endless brake pads carries a Subaru, Toyota, STI, or TRD part number. These oem aftermarket parts, especially hard to find ones may actually add value rather than detract many years down the road. Look how much various TRD, oem JDM, and TOM's parts add to AE86's nowadays.
No matter what you add though, a factory tuned car like a TRD, tS, Series.blue, etc. will always age better than aftermarket modifications.
If you're building a car, a good rule of thumb is if you do anything you can't undo, make sure it will look just as good ten years from now as it does now.
I built my S13 thirteen years ago with this in mind, and it's aged very well despite heavy modifications.
