CAIRO-Egypt plans to tap the Eurobond market for $1 billion-1.5 billion in seven to eight weeks, its first such issue since 2007, an adviser to the finance minister told Reuters on Friday. Asked whether there was interest, Mohamed Assaad said: "We believe so because there is decent appetite for Egyptian international papers and because we are not a regular issuer and do not have a lot of outstanding Eurobonds internationally."