I just remembered, there's a guy that make a cab sim stomp box for $100. Sells them on eBay. Kind of makes everything sound like an AMT stomp box from my recollection, so you wont get your IRs. There's a VST loader out there that is like $800, but that means you can load up your amp sims, IRs, and effects so if you like something that much then you can take it with you without your laptop.
Can't wait to see this $300 range IR loader though. I really wanted to use something like that with Eleven Rack, but they stopped development (and teased us with talking about user IRs all the while).