It certainly looks like a lot for the money. As a kit for use in a studio, it's almost a bargain (assuming a tripod that's up to it). If the lenses are decent, and are focal lengths that one is interested in, I'd say the price is pretty good for those and the film holders alone - about market rate if seven film holders is around £100, and the lenses £150 or so each, and you get a Cambo monorail thrown in. Almost worth considering with a view to selling the camera on (it does look well used, though, so I'd expect to be offering it fairly cheap)..
The Harrison offer notwithstanding, for getting started in field use, I'd be tempted to recommend one lens around 120-150mm, maybe three film holders (enough to fill a 6-sheet tank), and seek out a field camera body of some sort. In other words, start with a standard-ish focal length and see what direction you want to go in. Six shots is enough to keep you busy for an outing, and more film holders than that results in having to develop in batches and manage which holders have what in them. If anything, the camera body is the most important thing to consider - monorails are heavy, muckle lumps that need a hefty tripod and a big bag or case. Field cameras are much smaller and lighter and can be used with sensible tripods. Monorails have all the movements, while field cameras vary in what they can do. It's telling that a browse of the dealers shows that nearly all used 5x4 cameras for sale are monorails. In field cameras, Intrepid or Chroma for a new one with decent movements at the budget end. For around the same price used, a press/technical camera, but expect less movements. For a bit more to a lot more, a traditional style wooden field camera with decent-to-good movements.
For what it's worth...
I started with an MPP monorail and a 150mm lens. My Manfrotto 055 with leveller and MN410 geared head couldn't really cope with it - the head flexed too easily. Tripod and camera weighed about 10kg. Bought an old surveyor's tripod and converted it to use a 3/8" tripod screw, but no head. Solid, but ridiculously large, and never used it. Planned to make some sort of flight case for the MPP, but never did. Added a 90mm lens and ended up with 10 film holders. Had to make a little management tool using the Tap Forms database app on my iPhone to keep track of things (which film was in what, exposure notes). Virtually never used the stuff until I got a used Shen Hao HZX45 field camera in excellent++ condition for £500, and switched out the tripod legs for one of the bigger Calumet carbon fibre ones and ditched the leveller. Camera and tripod now about 5kg. Camera, lenses, holders, meter, accessories now all fit into either of two bags that were too small for just the MPP monorail (an old Billingham about 335 size, and a Lowepro Vertex 100 AW backpack). I'm not the youngest or fittest, but my roving photographer aspirations now extend much further than the edge of the car park. I've also taken my own advice about holders and restrict myself to 3 for an outing.
I still use the Tap Forms tool that I made - it can dump the data to the PC as a spreadsheet, so that's kept in a folder with the scans, and amounts to the exif data for the outing.
Getting the field camera and reducing the tripod weight was when the lightbulb went on. I bought the monorail without knowing anything and I ended up trying to make it usable by going down completely the wrong path. It would have been usable if I had continued, but I would have ended up with very heavy kit that was ridiculously bulky. The kit I've ended up with is no bigger or heavier than your typical reasonably comprehensive SLR/ DSLR or medium format outfit with a decent tripod.
