To make a long story short, I sold my bass rig (perfect rig IMO btw

) as I thought I wouldn't play out again or ever really need an amp. Well, parts of my band will re-group to jam, record, and play gigs. We've been jamming via preamps and headphones (drummer using electronic kit). We will be going away from this and jamming with amps, live drum kit, etc. Plus, it appears I might be jamming with another group friends.
But, I'm now challenged with funds. I typically buy used, but don't have the funds available to get exactly what I want. I'm hoping to get a solid, lightweight combo to use for a year while working to get more funds (I don't like to charge anything).
I have a Frankenstein Ampeg/Peavey 1x15 cab (8 ohm) that I'm looking at complementing these two amps.
Carvin BR510==appears solid and I like the EQ options. But, I've never tried one. As in quality, I can't personally compare--so I'm really looking for some input.
GK MB210==I like the weight and portability. I've owned several 800RBs in the past,and have always like GK. I have a 20% off coupon for MF making this amp a much better deal overall. I've played thru on at GC, but not with my own bass.
Thoughts?