All the best with this. I started in November with removing beard hair, though am now halted briefly whilst having other areas done.
I found like yourself, in my city, no-one would do more than one hour, due to no specialist electrologists here, all being part-time ie. beauticians. So I began by booking appointments each day with the 3 I liked best. And would do an hour with each. However, they’re all using old old machines, doing thermo (not blend) and I suffered months of terrible red cysts from ingrowing hairs due to poor technique; hairs not fully treated and being “plucked” and broken off under the skin and ingrowing. So if you have curly bristly hair (that’s prone to ingrowns) be aware of that.
I then asked them to just zap the hairs and not pluck. I wanted to see if the hairs that were properly zappped might fall out on their own, like say with laser. Well some have fallen out - I have gaps. But not many. I had the whole beard area done about 5-6 times that way; around mouth done thrice.
So that was all a learning lesson (or waste) of about 100 hours of my time; about 60 hours of electro plus travel.
I’ve now found two dedicated electrologists in Sydney (4 hour driving trip away) who do longer sessions and I am now having much better results. I am having about 1.5 days worth each fortnight.
With one therapist I am doing galvanic multi-probe, 4 machines, so up to 64 probes in me at a time, in for about 5 minutes each, 6 hours of it per day! It’s ah, character building! 
With my concerns from prior thermolysis, about hairs being broken off under the skin, and suffering months of ingrown cysts, I feel more confident with the galvanic for the thicker hairs. They usually come right out every time. But each follicle can go very red, scab and takes about 10-12 days to heal up. So one has to have a gap like that (at least 1 week) between galvanic treatments to avoid overtreatment. So it will take a fair while to reach clearance that way.
With the other therapist we are using an Apilus Platinum; 27mhz I believe it is straight thermolysis, as opposed to a blend of thermo and galvnic. It appears to be the creme de la creme of such machines. It doesn’t leave me with marks beyond redness for several hours. I like that a lot better for the finer hairs I am having treated (strict galvanic for those seems to be overkill, too marking, longer healing time and too slow). I will be having some thicker facial hairs tested tomorrow with the Apilus Platinum.
The only areas I found hurt a lot were the lips and the finer hairs on the mid and lower neck region. Try a topical analgesic like Emla. Plus a painkiller tablet can help take the edge of it. Best painkiller I found is to get talking about something you’re passionate about! (true!) So an electrologist with good conversational and listening skills is quite important! Or for around the mouth areas relax completely!
Anyway, I hope some of this is of use to you! Good luck!
With my concerns from prior thermolysis, about hairs being broken off under the skin, and suffering months of ingrown cysts, I feel more confident with the galvanic for the thicker hairs. They usually come right out every time. But each follicle can go very red, scab and takes about 10-12 days to heal up. So one has to have a gap like that (at least 1 week) between galvanic treatments to avoid overtreatment. So it will take a fair while to reach clearance that way.