Re: Front Rests
There's no need to get overly fancy, or spend a lot of $ if you don't want to. I personally get great results with just resting the rifle's forend on a sandbag, & grasping the rear sling swivel, using my hand as a support.
I've been shooting that way LONG prior to owning a bipod, with great results... 1/4 - 1/2 MOA. Both prone, & on a bench.
As long as your technique is repeatable for you, with whatever tools/assistance that you choose to use, you should get good results. Assuming you have the basics down to begin with that is.