FGU 2E adventure to 3.5

How crazy would it be to convert FGU 2e modules to 3.5/PF1e for personal use (not trying to get an exact conversion, we do a homebrew campaign but draw from many sources)? Our DM is interested in using 2e modules in our pf1e campaign in certain places and asked me to look into the difficulty. we are talking adventures only (not handbooks and such).

If I were to use the Universal Mod to open a 2E adventure in a new PF1e campaign, is it as "Simple" as replacing creatures and items with PF1e equivalent (ignoring Balance issues, as the DM is good at adjusting as needed). and then make that into a mod that can be opened in the main PF campaign? Or would I have to recreate everything from scratch?

or am I oversimplifying it so much it is painful to even read the above thought?

Thx

it is as simple as you suggest
items (eg magic items and other looted items) will likely also need to be substituted

You can only create a module out of what you create in a campaign - so you would not be able to export anything from a module that you open in that campaign - with or without the universal module. The latter is really meant to allow opening a module in a different ruleset and then editing things in that campaign so you can use it in that campaign.

So, if your DM is doing it then it is as simple as opening the module and editing the NPC,s items, etc to be compatible with the ruleset you are playing. The story entries and images can be used as is - other than relinking any encounters or other stuff that was edited.

Thx, I will let him know.