timing belt would be about $150 for aftermarket, if OEM almost double. - labour would be 2.0 hours at say $180
Lube service would be approx $250 depending on oils used (assuming engine and transfer and diffs)
At 100k should be coolant and waterpump. If waterpump OEM is $155, coolant is $65, labour on top of timing belt would be another hour so $90.
tune, assuming just a check tune not a dyno, should not be anymore than $100.
so total would be around $1,000.