There's some holes, but I'm not sure if they do anything...

Each item's data is 32bytes in length... And
rather complicated in there.
This is described in terms of the offset from
the base data pointer, that I can't remember
where is found...

Offset - Bytes - Description

00 - 01 - Part #?
01 - 01 - Def weight (# x 2)
02 - 02 - Accuracy (# divided by 16)
04 - 01 - Price (# x 20)
05 - 01 - Type (digits vary a lot)
06 - 16 - ?? (unused?)
22 - 01 - Right 4 bits, AP / left 4, Icon #.
 Example is: 59 would have icon #5 and AP of 9(?)
23 - 01 - Attack power
24 - 01 - Number of attacks (# divided by Cool
25 - 01 - left 4 bits, Accuracy % @ Range base
 (# x 2)/right 4, Not used?
26 - 01 - left 4 bits, Range
 (0 - inifinite, 8 - adds 1 to right 4 bits of
 offset 27...)/right 4, Class
27 - 01 - right 4, Max Range (# x 2)/left 4, nothing!!!
28 - 04 - Not used?

Umm... Sorry about the offsets being in decimal...
The ones that mention '4 bits' are meaning that
an 8 bits of:
AB
A would be one number, and B the other. They
fortunately don't use actual separate bits...

Here's a couple of data addresses I wrote down,
relating to where I figured out the above
info...
80120506 - Hardblow
80120526 - Bone Buster
80120546 - Fear Fist
80120886 - Chongdu 2
80120C06 - Mk6 Shield

I believe, there are a few hundred parts,
including all of the enemy pieces that can't be
used...

A side note: If you copy the right data from an
enemy unit on top of a user one, that user one
will become the copied one, but only in a
battle where that unit exists... It's even
possible to use the final boss's vehicle...
The only drawback is I think it requires being
copied manually, as the data doesn't quite line
up... Of course, I've completely forgotten, and
hadn't written down obviously where to get or
to put the info, so this note is of no real use...

D00E5F54 0900
80124AD4 FFFF
D00E5F54 0900
30124B8E 0074

D00E5F54 0100
800E59A6 0146