Firstly well done you for wanting to meet. And your correct meeting girls to gunge is normally paid wether it be splosh a girl with miss T or candy or any other models that provide private messy sessions. The alternative is someone like myself who loves to gunge a guy or someone who is in your area. But it seems alot of people are like yourself and myself and cant host and i normally just grab a cheap hotel to sort a session out.
Great that you want to start meets, I hope you have a fabulous time. Yes, if you want a female then a paid session is the way forward and that might be your best plan...although you will have to pay for the session, you will not have to organise a venue, sort clean-up, buy the gunge etc....just turn up, get trashed and go away again. I can personally recommend Candy but other session providers are also available and have good reports.
If you want to meet guys for sploshing there are many people up for it, with some you will have to sort out a venue like a hotel and possibly source some of the gunge etc and help with clean-up. Others (like myself) are able to host sessions at their own place, although you are far more likely to hook up with someone for a session if you go to a few splunches/meets as this demonstrates that you will actually turn up for things and not just hide behind your computer screen or get cold feet at the last minute. I personally only host people I have met before, as no-shows are such an awful waste of time.