Not saying this is the correct thing to do
I got mine done via the insurance, depends what your excess is, mines was ?60, made no difference to next years premium. came to my work and done it in 30 minutes, I did have a gen up crack in the window.
I dont know the condition of your motor or wit you use it for (play only or everything) but if you use it for a daily drive you cant go wrong if your policy excess is the same
James