here is how i would do it with such limited funds:
save for nice looking 1-gene females, like female enchi or female pinstripe or whatever codominant/dominant you like.
take care that you have about 3 females for 1 male, not too many males. however, since you breed one male to between 2 and 4 females, and males are cheaper, the males are where you should invest in a good-looking multi-gene animal.
then, in 2 or 3 years, you can start a nice breeding operation. and it will not produce 50% normals and 50% spiders, you will get 2-gene and 3-gene hatchlings and single gene hatchlings and only few normals.
also watch out for morph issues:
http://www.owalreptiles.com/issues.php
when considering working with these genes and when in doubt, ask here. You can still work with these genes of course, its just that some pairings should be avoided. Genes that are not on the list can be combined in any way without any problems.