Not sure about combining the games... certainly it's not something that I would personally do. I'll let FO2 stay the domain of Killap, Timeslip and others
I think mostly the issue of this is FO2 is something like 77 years after the first game, so from a purely storyline perspective it makes no sense.
But I think I understand what you mean. It would indeed be cool to explore all locations in one game.
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@JimTheDinosaur From the To-Do list (see my sig) here's the ones I could use help with. Most of the others are taken care of already, by either you or Darek or myself. Bolded the most important ones.
1)
Implementing the party members in all the proper FO2 files so they work just like the FO2 party members.
2) I want the cities on the worldmap GUI to be all in one list without the scroll bar, like in FO1.
3) Can the trait Fast Shot be changed to affect HtH as well as guns, just like in Fallout 1? I know people are going to request this as optional in the installer.
4) Also anticipate optional request: 1-to-1 skill point usage when raising past 100% like in Fallout1, instead of scaling up (2-for-1, 3-for-1, etc) like FO1 does.
5)
Are there any other equation calculations that changed between the games? Such as HP at levelup, etc.
6)
Can_Rest_Here entries in worldmap.txt, are these seriously a boolean? Why can't we set it that the player can't rest there unless all non-allied critters are dead?
7)
Which version of Fallout2.exe should we use? It needs to fully support the newest version of Sfall and f2_res. Not sure if I should use the one from F2RP or just USv1.02d
8)
Water chip quest in Pipboy (countdown post-it note) [Possibly fixable using Sfall GUI commands, see post from Lexx] - Hard ,,, Since I don't know any Sfall coding yet, I'll do this a quick and dirty way.... notify on each map enter.
9) Dotted line while moving on world map [Maybe doable with Sfall but Timeslip hasn't responded] - Hard ,,, Will ignore for now
10) Tell-Me-About button does not exist. [can use workaround of having entries in an equivalent in-dialog selection, i.e. in dialog will always have "Tell me about..." as clickable option, from there will have options of what to ask about. Otherwise, will need functional GUI elements added and rebuilding the Tell Me About code from scratch]
It would probably be finished already if you were helping. 
