The days when a tradesmens tools were sacred is long gone, we are being overtaken by the scumbags and it is really horrible when someone gets there tools stolen especially when they rely on them to make their living, I really feel for you.
I was wondering how all your tools were stolen in North wales, but working in London explains it all. Was it just your tools or did others also get done? If so could you not seek compensation from the firm you were working for because surely site security is there responsibility.
Another option is this crowdfunding, maybe an option!
In London if it is not guarded it will be stolen, I knew a firm who used to alarm all there scaffolding and even have two guys on night watch because it was so bad.
I have a Bosch GKS65 saw, not a track saw but easy to run down the edge of a length of wood. It is 110 volt with a 190mm blade and had little use, I did advertise it on these forums for sale
For Sale - Bosch GKS 65 but if you can make use of it to get you out of a hole then I will give it to you, just pay the postage.