Yep, full points to the blanket stacker.
The 104 and the 103 had quite a few interchangable modules and the easiest way to tell them apart was the length of the M15.
Also working on the 104 installed was much easier and quicker - far fewer green boxes to hook up and pratt about with.
I always wanted to make an old M15 into a robot wars machine. Use the T/R buckets as primary weapon - vsssssshhhhttt clang.
then hit the reheat - HEE HEE HEE
Alas, chiefy said we couldn't spare the module. We had to make do with scrapheap challenge Fridays.