Hello Nanks
That's a real dilemma and, while we might all have views, it's one that you alone can resolve.
My take can only reflect my views, but it would be this. I engage in modelling aircraft of this era for the enjoyment (and via this forum) the friendship it brings me. In doing so there are highs and lows. Sometimes models can plunge me to the depths of despair; other times I can feel really happy with something I've achieved. Now, these models are, by Des's account, very crude and require a lot of work. Building them could bring tears of frustration, but I would find the possibility of producing something reasonable from them a high. If I did not try, I would not know.
So, I would give them a go, no doubt cursing the decision from the moment I break open the packaging, but looking for a learning experience from the challenge.
But, of course, that's just my take and I haven't laid out the cash on them as you have.
Best wishes
Nigel