I have been around one of csr flexplate/tranny shields, hated that pos
I wouldnt trust a blanket type either, on bullet there are pics of tran blankets installed correctly and and it can still cut the straps when it lets go
My opinion would be an aftermarket sfi bell, that way it doesnt take up any more room than now where space counts (firewall area).
And then run a hard shield over the transmission, great plenty of room in the tunnel with a hard shield on,