When you get a turbo from one of the known sources they usually have it set pretty close to where you need it to be(wastegate) so it really is not a hard job at all!! 4 nuts, the exhaust, intake supply, and the oil in/out hookups- simple... . should take no longer than an hour- less if you have done it before. .
I can yank em off now quickly- 15 minutes or so..... and I have a 98. 5 too so there's nothing different between the trucks- Flyboy just do it!! You'll be happy about accomplishing this task yourself and saving the cash.....