Fair enough, but your OP said you hated spending time looking for materials to refuel your SRV (which by the way is exploration...), so your fix for this is then going to be looking for planets that are close enough to the sun, allow for planetfall, then landing on said planet (which can be quite hazardous in high G situations) and then refuel using solar panels. Personally I would just stick to picking up rocks mate!
This would be terribly tedious, far worse than the current situation... The current situation being that with even the slightest understanding of the material system you never ever ever have to worry about fueling your SRV ever again. OP's suggestion is terrible.