Good work Dr Who, sounds good so far!
Having been through the ADI qualifying process myself a few years back, I thought I'd post with a few bits of advice - you may have it figured out already, but something might help...!
I would look for an independent trainer, don't go anywhere near one of the big names. Someone who will take cash in hand session by session, and only cover what you need. I did a whole bunch of casual sessions with an ex-ADI friend for a pint each Friday down the pub to get my Part 2 driving up to standard and on my first official session with a trainer, he told me to book my Part 2 test straight away - we started straight on my Part 3, which undoubtedly saved me a lot of money.
Have you discovered driving instructor tv? Blaine Walsh runs it, and it is 100% worth the sign up fee for the videos. My trainer didn't recommend it to me, I found it myself, and found it absolutely invaluable. I was/am an experienced teacher in other areas, so never found "learning to teach" a problem, but those videos more than anything showed me how to play the system on the Part 3 test, and get inside the head of the examiner.
All in all, I got qualified for around a grand (including test fees), so it's definitely doable.
I am always very skeptical as to whether driver instruction is financially viable.
Do the financials really stack up? I can never work it out.
Interesting... I found it tricky, and I think the industry is increasingly becoming based around two camps:
- People charging proper prices, working hard and making a living off reputation and a good client base
- A good sized proportion of instructors taking part in the lesson price war, discovering they can't make it pay, lasting two years and then giving way to the next wave of newly qualified instructors.
The long and short of it is that I worked out on my big spreadsheet that it cost me about £7 an hour to run my car (fuel/tax/servicing/etc). Some providers are handing out 5 lessons for £55 - which leaves the instructor working for £4 an hour. Out of that £4 an hour, he/she needs to find £150+ per week to pay the franchise fee before earning a wage. I knew of instructors with boot fulls of empty Red Bull cans, teaching 60+ hours over a 7 day working week (so out the house for 80+ including travelling between lessons) and effectively paying themselves a £10k salary after fuel.
I tried to go down the first route, and found a lot of people (even direct/close friends of the family) asked what I charged (£24 an hour in 2012) and never contacted again. Some did go with me, were satisfied, passed first time with no minors or whatever, recommended me, and my client base did start to go over the space of a couple of years.
Around that time, I was offered a permanent salaried post teaching off the back of some part time self employed working a school that paid at the very top end of what I could hope to earn instructing, so I quit and went in that direction, so never got a chance to see how it worked out in the end.
I think the OP is in the best position he could be in - working off his own back to qualify, and having a part time job to carry on working until he's in a position in a year or three's time to quit, having built up his client base.