What sort of temp should I be looking at for a dry sump set up? Temp sender is located at the oil filter.

it depends on the oil you are using. a good fully synth oil will be fine up to about 125degC, semi synth about 110degC. cruising around somewhere between 90-100deg wouldn't worry me, expect you will see over 100 on a good thrashing. if your that worried fit an oil cooler.

Had a cooler, in fact had two! First one way to big, second smaller but still not seeing temps above 80. Have removed it completely now and saw temps last night up to 100-102 with semi synth. Was under the impression that fully synth is not the best thing to use.