I had that vintage Smuggler and made quite a few tweaks, I’ll just give you some bulletpoints…
– I had a 140mm fork and it worked well enough, I’d be tempted to try 130mm though as you just want it for trail centres and local riding (not too gnarly?)
– I used a -1 or -1.5deg headset IIRC, but now I’d go straight to a -2deg one (Superstar are good & cheap)
– That puts you at 65.5deg head angle, then an offset bushing or two can tune things further
– I mostly used the stock Monarch shock, which was OK, but also tried it with a Cane Creek DBair and that was incredible