There are quite a few firms that can do this, the exposed metal needs to be properly treated, the the rubber seal carefully fitted, but it's not a massive job.
Or did you plan on attempting this DIY? Getting straight (I.e. not curved) automtive safety glass cut to size should not be a problem, again quite a few firms will do this for you. Or you could stick to original/OEM glass. The metal needs to be cut in such a way as to not impact on the rigidity of the structure.
And don't forget to notify your insurer......... possibly also the DVLA though I am not sure .