As is the case with so many other things: I'm sure what you're proposing will work fine. There is not 100% certainty of loss of life, limb, or property.
BUT!!!
If something DOES go wrong, the inconvenience/damage will FAR exceed any cost or inconvenience that would have been required to do it right the first time.
This is typically my litmus test for making such decisions.
A story:
My brother asks me yesterday if I've ever felled a tree (10" to 14" on my property) by hooking up come-a-longs and straps, putting tension on it, and digging the backside of the tree with my backhoe. This to save the ~$150 I would pay my tree-guy to put a tree on the ground. Mind you, this is only trees that are in an "at risk" location...near the house or other trees I want to save...
Putting myself, my tractor, my backhoe, my house, whatever other trees, etc., at risk to save $150? No, thank you. If I was saving $12,000, I'd think about it.
I'd apply similar rationale to your decision. However, I think in either case, you'd be creeping up on, or exceeding, your towing capacity very quickly.