Perhaps question 1 which presents the reduced payments account to X months multiplied by new monthly payment proposal for the remainder of term (assuming no equity in property).
Question 2 offers to introduce a lump sum into the IVA which amounts to the same (or slightly more) as the total sum in question 1, the reduced costs in IP fees in the lump sum and the reduced risk of further payment reduction variations makes the lump sum much more appealing to creditors.
You could stipulate that the lump sum my be made available from either a loan from a family member/ friend or if you were to take VS, but both would only be on the grounds that the lump sum to end IVA was agreed.
Also remember to make it clear that the final lump sum value reduces per payment made each month that goes by (these things can take a little while with various firms).
The only reason I have introduced the family/friend option is that it gives you options, I guess the key thing is money coming in, they don't care where from.
Just personal opinion from reading this forum for the last year