I take on quite a bit of minor work, which is not notifiable, and could probably make a living doing that - you mentioned small alterations - if its not adding a new circuit then generally it is minor so no LABC fees involved. I have the problem of not being able to say no to any challenge so tend to take on bigger projects than I really want - but this usually means they pay well and factoring in the Building inspector is usually quite easy. There are many ways around this - and I have to admit that for most people its registering, it does take some hassle from it, but most customers understand that the LABC have a finger in the pie and accept it - if they don't they will find themselves a registered guy - but thats not always easy. After a 30 year military career I tend to look at things through different glasses as I have my pension to fall back on - so if I get work, good, if I don't its not the end of the world. I know many guys in my position who are new to the trade and you could probably run rings round us when it comes to installation knowledge, so if I was you I would go for it. The intensive 2391 Insp & Test course is not easy but I'm sure you would have no trouble with it - that opens up a whole new world as demand for qualified Insp & Test guys is high - particularly registered ones.