So before the whole COVID19 thing blew out I was about to buy a GK and sell my Peavey Bass MK 8. Now that things seem more financially stable for me (might be naive) I've been GASing again still with the GK in mind but also contemplating other options. So while looking at ads on the local Craigslist or eBay I've come across a Carvin FET 1000 and remembered hearing/reading fairly often about the wonders of MOSFET transistors on the power section combined with a tube preamp. So I've been thinking about moving to a rack system, rather than buying an integrated amp. Very influenced by what is in the used market around here, I've been thinking about getting an Ampeg SVT IIP preamp, the Carvin, and a guitar preamp since I've been playing guitar for a while without a proper amp. This way I could feed both preamps into the Carvin, which pushes 500 Watt for each of its two channels, keeping the bass preamp clean and guitar preamp with lots of dirt and whatever effects I want to use. This would be the main function for the guitar preamp, since I mainly play bass and so far suck at guitar and a decent sound should be enough for the near future. Looking into guitar preamps I've come across the Roland SIP 300. There's a version of the same for bass, the 301, but so far the only difference that I've found is the eq, that the 300 has a distortion and the 301 a compressor and a crossover with different outputs for biamping. The idea would be getting the 300 for the dirt. About combining both Roland preamps I have several ideas, all of them with the Carvin as a power section. Idea one would be to get both the 300 and the 301 and use the last one for the cleans and the other or the dirt/effects, plugging the bass in each of them with a signal splitter. Idea two would be to plug into the 301 (the one for bass) and then using the crossover for the highs/mids to go into the 300 and distort/use effects, but the other crossover directly to the power amp. Idea three would be to to not get the 301 but the aforementioned Ampeg, plugging the bass into it, and since it has two outputs plug one to the power amp and the other to input of the 300 for the dirt/effects signal. So what do you think about these ideas?