You may get a male up to weight and ready by this breeding season - since you are planning to work with pastels if you should be able to pick up a normal female or two of breeding weight for him. There is no guarantee tho, some males will be ready to breed at 400 or 500 grams some other not until they are up to 1000. Some will breed their first season and some not until thier second or third. good luck with your project.
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Tosha 
"Stupid is forever, ignorance can be fixed." Don Wood
"Of course, that's only my opinion...and I believe I am God." =) Chris Bianco
7.33.0 Ball Python (Harry and Fluffy and gang)
1.0.0 Angolan Python (Skywalker)
0.0.1 Green Tree Python
0.2.0 Feline (Pippen and Pandora)
0.0.1 Dessert Tortoise (Pope John Paul)
2.2.1 Fish (1,2,3,4)
0.0.0 Pool skimmer rescues for this season