I have a Fender Bassman Export 50, and its associated 2 x 15 cab, and can confirm that it is excellent as a guitar rig. I also used it for several years as my bass amp, on big stages and exterior gigs, as well as home practise, and it worked splendidly for that, too. The head is currently with my amp repair man, awaiting pick-up after its major overhaul (re-caps, and a duff o/p tranny...); I'll have to make time to get it, as it was ready before Christmas, but travel wasn't allowed, so... Hmm... Maybe next week..? S'been too long since I used it.
Here's a (very...) old photo; it's just visible on the left ...
... and again, with one of my guitars ..