If you're going through the trouble, buy tapered inserts and move the tierod to the top of the knuckle steering arms.
I've used similar parts I sourced myself, and only the pitman arm needs reamed unless you use the same TRE on the DS end of the tierod at the pitman arm, then no reaming required.
The 2026 and 2027 have the larger taper and can be avoided, substituting the 2234r for the 2026r at the pitman arm.
I don't think the 2234r has the range of motion the 2026r has, so you can't have a really steep draglink angle with the 2234r, but you don't want that anyway due to bumpsteer.
Good tierod end measurement info:
http://www.partsmike.com/tech/tie_rodid.html
