Hi, welcome to JustAnwer! This is Ed.
I'd expect fuel pressure loss to account for a small amount of cold start delay, but not two to three attempts before it fires. Your concern about loss of fuel system pressure was valid and does account for some instances of this sort of problem, but I really can't apply it to your present condition.
I'm going to begin with a few suppositions that may not be true...
That the only time you have a problem starting the car is after its been sitting for a prolonged period.
It might be an hour or overnight, so please fill in the blanks on that one.
That it runs completely fine once running! Once again, I'm filling in my own blanks on this one. If it doesn't run absolutely as you'd expect, let me know. A slow build-to-running (chug-chug) or sputtering before starting differs from a standard V-ARROOOOOM sort of start, where it suddenly takes off with no ill effects. Please tell me how it actually starts once it does fire.
There was no mention of a CHECK ENGINE lamp illumination while driving. If one so happens, by all means get a vehicle scan and report the results back to me. Many aftermarket automotive part stores will do this scan for free, such as Autozone or CarQuest. The 1998 model year didn't offer a customer-read option, which does sadden me.
So, let me know a few things..
How long it has to set before the problem shows itself.
If shorter periods of time result in lesser degrees of restart difficulty. Is it all bad or all OK?
If it starts fine once the cranking period is met. No misfire or slow build to running?
Is there a CHECK ENGINE lamp illumination at any time when running? You'll need to get the car scanned if so.
I'm usually available for a phone conversation if vehicle history or a casual conversation might help. It usually does.
Talk in a bit,