I am looking to go lightweight on my bass rig and sell off my Peavey Pro500 w/ 210TVX & BX115-BW (both are 4 Ohm cabs). I recently bought an ever-so-slightly used Markbass 350/500W combo (CMD 102P) for a great price, and it is truly great and completely different than the PV. I play mostly rock and even with the confined space of our jam room and the over-the-top drum kit, the Markbass does pretty well. For some outdoor gigs, I am looking to expand it with an 8 Ohm 210 cabinet, stack them sideways into a vertical 4x10. I'd love to keep the cost to the $350-400 range. I've looked at the Markbass 102HF (Standard, Front Ported), which is exactly the same dimensions as my combo, but they are pretty dear for an expansion cabinet ($700 on sale). I've been looking around locally for a good/used cabinet made by any of the reputable companies, but I don't have a lot of experience with some of the brands, i.e.; Ashdown, Avatar, Eden, Bergantino, GK, etc. I've been playing Peavey since I picked up the bass. I did see a used Bergantino HT210 (8 Ohms & Handles 400W) for $375 on eBay, but it weighs in at 64 lbs., and I was hoping to keep the weight down a bit. Any thoughts or words of wisdom about some of the brands I've mentioned or some that I should be looking at to fit my criteria? Thanks.