Eh, probate in Texas with a well drafted will is not onerous or expensive as long as your estate qualifies for an independent administration (which 95% of estates should if you have a well-drafted will in place), and because the homestead protections in Texas are so robust there's not the same need to put your primary residence in a trust as other states. And a lot of the other large assets you mentioned (investment accounts, life insurance, bank accounts) can be set up to be POD or go to beneficiaries outright, taking them out of probate all together. And cars - the rigamarole of titling a motor vehicle in a trust is not worth it, and the protections of a trust (i.e. protections from judgment creditors if you/your car causes a large amount of damage to another person who sues for recovery) can be replicated by carrying good insurance. I talk most people out of living trusts, even though they make me more money to draft, because they are overkill and even if set up right there are lots of pitfalls if they aren't administered correctly after they are drafted/set up. I do dozens and dozens of estate plans each year, and only a handful of living trusts each year. There are good reasons to do living trusts, but they are overkill for most Texas residents.
I'm in Austin but can draft Wills, etc. for anyone in the state. I doubt you actually need a living trust based on your post, at least not a living trust (a testamentary trust is probably called for in most situations, but that's part of the Will, not a stand alone document). If you want to get a lawyer (i.e. me) to draft it without paying $1500+, sign up for Texas Legal (www.texaslegal.org) by the 24th of this month, and you'll be covered on April 1st. I'm a participating attorney, and Texas Legal will pay me for the work with no additional out of pocket costs to you, while all you pay them is your monthly or annual membership fees.
Send me a PM if you want more information.