Physically the pyro fuse should be reasonably straightforward, I think where you will come unstuck will the the lack of access to the diagnostic tools / knowhow. If it was a VAG - I'd go for it, as you can get access to ODIS / vagcom VCDS etc., and people know who to use them and can do it remotly for you.... but with an MG I cant see the same sort of access to diagnostic tools.
An example of this, is that I've just got a Autel TS508 TPMS reset tool, with latest verson. Yes I can select the right car, in my case MG4, on the tool, but getting it to work through the OBD port is something else.