karoshi

Here's my Itinerary in a nutshell.
Wondering which places I can pitch a tent and likely find cheap accomodations.
Think I can do this with less than 3,500 Euros?

Cost saving tips? Places to go?
This is my trip of a lifetime.

Leaving May 15th for London (2 nights)
May 18- Madrid Spain (2 nights)
May 20-31 - Cordoba(2), Sevilla-Arcos De la Frontera(1), Ronda(1), Granada(2), Valencia(2), Barcelona(3 including Girona)
June 1st - Venice Italy (1)
June 2-15 - Milan-Torino (2), La Spezia(2), Sienna Florence (2)
(any tips on places to go in tuscany?

June 15-20 - Italian Farm Stay - Naples (5)
June 20-25 - Pompeii, Capri, Sorrento, Sicily (5 days throughout)
June 25-30 - Bari(1), Dubrovnik(2), Corcula - Split(2)
July 1 - July 5 - Budapest(?), Bratislava(2), Vienna(?)
July 5-9th - Prague (4)
July 10-12th - Frankfurt Germany (2)

Any tips? Think I'm crazy?