I get that part but also depending on your from mulberry trees are usually everywhere and 12$ also on eBay will get you enough to raise 2000 silks so either way you can still make your money if that’s your thing
250 ain’t bad at all you’ll be fine at that price just don’t hold back any info a lot of people like pure breeds so admitting they’re a cross is good there’s a lot of people that hold back that info but if you have the space hold back the males till you see the colors that’s what really catches...
You might wanna get a laybin just in case 4 months is young but I have heard of veileds starting at 4 months never experienced it my self but it’s possible