Hi Roger, not sure I can help out but I have the
Lowpro Mini Trekker which may be slightly smaller than what you're looking at but it's surprisingly good for storage. It packs the following:
- Can 450D with 18-270 zoom
- Can 20D with 10-20 zoom
- 35-50 zoom
- 85mm fixed
- Right angle viewfinder
- 2 x remote release
- Couple filters
- Spare batteries and chargers, misc cables
- Can strap a light weight tripod to the front
I'm considering getting a 100mm macro but given it won't fit with all the above would probably need to get a SlipLock lens case which attaches to the side.
Have fun in Japan