Dont go for general tyres, or eurostar for that matter. General tyres have no grip, and eurostar tyres are just blah
If you want to go for cheaper tyres then go for Bridgestone, otherwise Dunlop SP sport 9000, or Yokohama ES100. If you want really really good grip, go for Formula FM901, but I wouldnt recommend for Belta.
AS for the stepny, go for a 15" stepny, I think city 2010's stepny should fit. you can get those for 1k per piece.