you can, indeed, do any of the alt. process even with 35mm..though it will be small. On the other hand you can make enlarge negatives from your 35mm..have not done this my self so others here would be a better source of information. Also, the Van Dyke's are much less $ to make - $20 for a kit. Look at unblinkingeye.com/Articles/Vandyke/vandyke.html for more info on the Van Dyke process, it also discusses enlarged negatives.
You could also, slap me for saying this...make a digital negative, man that hurt....
Anyway do a search in the gray area of this site (alt process forum has a gray area) or better yet do a google search and you might find some information.
yeah, yeah .... jeremy, I said digital negatives..can you help with this one..I'm not feeling so good now...