You ALWAYS be honest – avoiding the truth is a HIGHLY dangerous move.
You should however make it clear that they are getting a working theme for a fraction of the cost of a custom build project (explain the likely costs of that), and that what they are paying for is time for you to set it up, optimise it, edit content, layout, features etc that are required to meet their needs.
To be honest something like that owuld never get on to sale here as it is too basic.
You could easily achieve it by stripping some of the ones here out and just using the blog sections.
Captions should be really easy in any theme
If this is what you want/need then it maybe also worth looking at freebie themes HOWEVER these do not (in general) offer the stability etc of the ones from here
It is also worth remembering that in both Australia and the UK the standard of work and number of designer, developers etc competing for projects is VERY high so before trying to come and work in either you will need a substantial and solid portfolio of projects and experience behind you if you are to be able to afford to live/work in such expensive places
The UK is totally different and in general much much easier. Depends where you are coming from.
EU country residents can come over and work here, non-EU member countries need to go through a different visa process.
Again it comes down to personal cases but the UK is more open to people coming without sponsorship than places like Australia
It is possible for an Australian company to sponsor you if you and the employer are wiling to go through all the paperwork (as you said its bad everywhere BUT Australia is something else) and pay the fees (this can be a deterrent at times).
To be hones there are so many different regulations e.g. health, education ,country of origin, scale of business sponsor, industry etc etc – it took us nearly a year and cost well into the thousands of £ and that was with a highly skilled offer already there.
The best advice I can offer is see if there are people willing to support the application (most sponsors are huge or highly specialized organizations), and then seek advice fro ma visa company or Lawyer ( I only know these in the UK but Google will help) as there is often not a big fee (pre-application process and just for advice) but they will be able to advise you best on your individual case.
Even if a company wants to sponsor you that doe snot guarantee you will get the visa – irrelevant of the industry (although yes ‘in demand’ ones definitely help.
My wife was granted a ‘highly skilled visa’ (working in financial anti-corruption), but i could not go on her visa. Eventually my company (a global agency) sponsored me to go to our offices there BUT the process (as mentioned before) is crazy complicated and expensive PLUS if a company want to sponsor you then it costs then a fortune as well.
I wish anyone trying all the best luck in the world to get through but even if you get spotted by someone out there both you and the potential employer will still need to go through the paperwork, process, tests, meet the rest of the requirements.