On my 1275 stroker is a orange dot clutch diapham up to the job or do I go with a grey one using a gr head and either re13 or kent 286 cam

I'm running an orange dot clutch in my 1412. Cam is an RE13 with ToyoMini 1.46:1 rockers. Not in the car yet though.
I expect it to be OK, as the orange dot one in my 1360 with RE282 cam (with about 10HP more power at crank) works fine.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Orange dot with 136hp and 114ft lbs torque.
with an AP racing friction plate.

You should be alright.