Don't think it would be possible with an Axis/Vegas 25.5. For one thing, the wheel wells for the dual rear wheels take up part of the space under the twin beds. Also, on driver's side is the power inverter/coach battery charger, some plumbing and electrical stuff. There is some space where there are storage drawers but its only maybe 30" wide. IMO, with a 25.5, only space where you possibly might locate a desk would be to remove the sleeper/couch on the slide out. That space is 68" wide.
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