You might squeak by on $50 a day if you're very, very careful - and I mean camping, buying food from chip shops or supermarkets, etc. and possibly hitching rides once and a while. You should be able to manage on $100 a day with no problem. This isn't meant to discourage you, but you will find that there are tons and tons of excellent musicians in the UK, Scotland and especially Ireland. They will be hanging out on the fringes of the festivals and playing for FREE, I guarantee it. Lots of people go to festivals and don't even attend the formal concerts (much to the chagrin of the organizers)because you can sit in a pub and hear great music for free well into the wee hours of the morning. There are also lots of pubs (I don't know about England now with all the PEL laws) where musicians gather and play, also for FREE. They're playing because they love it, not to make money. And the quality of musicianship tends to be very high. So it will be difficult to get paying gigs. That said - I think you should budget enough money (even if it's a bare minimum) and go hang out at the festivals, etc.   You'll meet people and probably make friends. You may well meet up with friendly folks who will show you around and put you up for a few days. And there'll be sessions where you can strut your stuff.   You never know, you might make some good contacts and be able to set up a tour for next year. I gather you are young - that's even better. Go for it, and in the meantime you might try to make some contacts via the internet for your summer visit. YOu could direct them to your website and see if you get any offers, but don't count on it. Also you could book floor spots at some of the clubs. This also often has to be done in advance - it depends on the club. That will get you some exposure. And you might sell a couple of CD's , if you have some. Good luck