Problem solving complex if/and/or formula

I am having difficulties coming up with a formula to solve the following criteria... please help!!!

1 point for K2=A OR K2=B OR K2=C OR K2=D
1 point for L2>139 OR M2>89 (if both, still only add 1 point)
1 point for N2>149 OR R2<40 OR S2>99 OR T2>199 (if one or more, still only add 1 point)
1 point for O2>125 OR O2 has red font
1 point for W2>26 IF (Q2>1.0 if D2=M OR Q2>0.8 if D2=F)

I need all the points to add up in X2.