First observation is that two hundred quid won’t buy even a single share of Personal Assets. The second is that three years isn’t a long time for equity investments.
As you are looking at total capital of £1400 then I’d suggest just the one, or possibly two ITs from the list. But I’d favour just the one. Because it is not possible to buy fractions of shares, the more ITs you hold, the greater the amount of uninvested cash you are likely to have hanging around.
F&C, Witan and Bankers are too similar to each other for me to want to hold all of them (not that I do hold any of them), so I’d narrow these down to just the one.
Whilst RITCap says that it is interested in capital preservation, I wouldn’t put it in the same league as Personal Assets or Ruffer - not without seeing how it copes with the next downturn, whenever that might be. I have always thought of it as a growth fund, and both bought and sold it for that reason. But the last sale was a few years ago and I haven’t been keeping up-to-date with it, so it might be doing things a bit differently now. Not sure that I think of it as being a 3-year, cautious fund!
I’d also replace IP Enhanced Income with City Merchants High Yield for consideration. The two do have the same managers and have similar holdings, but the former has quite a high level of gearing, and certainly well above what is appropriate for a risk level of 5! In fact, CMHY currently has a net cash position. Both of these hold more sub-invesmtment grade bonds than investment grade, and carry higher associated risks accordingly. If you did want to have a separate bond fund and did want a lower potential correlation with equities then you might consider an OEIC bond fund instead - these have a level of choice that simply isn’t available with ITs. Or, you hold something like Personal Assets as a proxy for them.
Regarding Henderson Diversified, are you clear on the types of assets that this holds? There is a bit more to it than just ‘bonds’, so you need to be aware of this. Not trying to dissuade you, just making sure you’ve done your research!