If you have the Intensity Series and the Body Blast Series on DVD, here is a suggested substitute mish-mosh for MIC:
Kick Punch Crunch warm-up THROUGH PRESTRETCH (takes you into the first aerobic segment); then
Step Jump Pump hi/lo add-on premix (this omits all resistance cycles); THEN
Boot Camp cardio only premix, omitting warm-up
That should run about 30-35 minutes. If the May rotation calls for the entire MIC workout including the 35-minute step segment, I'd suggest adding on either I-Max 2 Blast Only premix (which omits warm-up and mid-range step segments) or Step Blast omitting warm-up, for as long as you can go.
Also, if you have the CTX series either on vid or DVD, here is another hi/lo mish-mosh:
Power Circuit warm-up and hi/lo segment; THEN
10-10-10 hi/lo segment; THEN
Boot Camp cardio only premix, omitting warm-up (can you tell I'm a slave to that premix?).
Add on interval step routine of choice, again, if MIC is to be completed in its entirety.
Hope this helps -
A-Jock