Check this out to do some comparing of the sizes of bikes and to see what other options are out there
https://docs.google.com/spreadsheets...#gid=854010775
I'd leverage off that Trek connection if you can. Fit will be what counts, so if those bikes do fit, then why not. All reports are that they're a decent package whether you go for Stache/Slash/Fuel.
If you want to geek out a bit and potentially do your head in, here's a link with a whole lot of leverage ratios to sift through
Linkage Design: Trek