The basic A4000 Toaster/Flyer Configuation was Toaster, Flyer, Octopus Cable and 1 TBC, usually a DPS TBC IV. The flyer drives were in another case connected to the Octopus cable. There were better options with the A4000T or 3rd party expansion chassises/extender card combos like the Highflyer or Toaster Oven.
The Farouda card is Zorro so you will have to sacrafice the TBC to use it. It is much easier to find an external box with isa slots than the Amiga Zorro slots. There were external drive boxes with isa slots specifially designed for the Flyer.
With something like a modern DV camcorder or SD DVD player, you won't need a TBC. They are not worth a lot these days and you can buy external TBCs really cheap if you have video equipment that needs one. My experience is that includes most HD video gear that has a scaled composite or s-video output as well as analog VCRs.
Just in case your interested, I have an Octopus cable on eBay for a pretty reasonable price:
http://www.ebay.com/itm/221200523749?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649I just bought an A4000T Toaster/Flyer system and am going to use the internal drive bays, not external drives for the Flyer. Flyer drive options are much better and cheaper than in the 90s.