What field of work would you be looking at?
Work permit - no problem, as long as you can prove you won't be a drain on the public purse.
We work for our own business and WFH - my partner is a 'come over', I am Manx by birth. He brought his first wife and young son here in 2005 and set up the business.
You will be considered a Manx citizen after 5 years and would qualify for the same benefits as me.
No dislike of folk moving here, true Manx people are open and honest and I have met no racism or xenophobia from the Manx. Folk who move here are 'come overs' and once they settle, they are 'stop overs'. I've never known it said with any hatred though.
Everything is much the same as the UK - but our government wear dafter outfits.
We are struggling to attract and keep all medical staff, including gp's, dentists, nurses etc. Our one hospital newly built and opened around 2010 is now unable to cope and we send a lot of medical problems to the UK - even basic pacemaker ops, are done in Liverpool as we can't attract and keep the expertise here.
There is no 'cap' on immigration and our current chief minister (like your PM) wants to grow the population to 100k. As we have negative unemployment, I can sort of see the thinking, but the infrastructure is crumbling around us as the public money isn't there is to make working on the Island that attractive.
You will be considered a Manx citizen after 5 years and would qualify for the same benefits as me.
Utilities - there is a monopoly for electricity, and another one for gas supply (don't get a house with gas heating). Phone companies, we now have two - it is much more expensive here for broadband/mobile. There are no '£10 sim only, with unlimited calls/texts/data deals'
Insurance - used to be much cheaper over here for car insurance, but as cars are now very expensive things and everyone has a brand new on lease (not me, ours are 10 & 20 years old), car insurance is now on a par with the UK.
House insurance is less - I have a 3 bed semi, with garage for £35 per month home insurance.
Council tax, we don't have that. We have 'Rates'. My house above, for the year has just come in around £1,800 for this year.
Supermarkets - we have recently acquired multiple Tesco's. A few small Co-Ops and Spar shops. We have no Aldi, Lidl.
Clothes shopping - the main street in Douglas is poor, there is little choice. We have no Primark/Matalan etc. We do have an M&S that has a food hall, clothes section and home store.
A government run airport and sea ferry company. In bad weather you can and will be 'stuck' here without anyway of safely travelling off Island for days at a time - it is more concerning if you have family in the UK, who may need you urgently.
It is a beautiful place to live and if you like the outdoors lifestyle, this is the place to be. The crime rate is lower here, in all areas. However, we do have our problems and we have always had a thriving drug problem (since I was young, I am now 51). It is easily avoided as we don't go to pubs etc and keep ourselves to ourselves, but we're aware.
Our brand new prison is also at capacity (it's been open maybe 20 years), so we do have criminals and crime. But few house breaking burglaries or robberies with violence, muggings, don't really happen here either. If your car is stolen (very rare), the police put out a request for folk to look out for the vehicle and registration - usually returned within 12 hours because it's a small Island and where are they going to go?
And breathe... apologies, it seems I get carried away! Please feel free to send me a private message if you need anything further. I will do my best to work out how to use that facility.
Good luck.