Almost certainly an individual petition. The blanket programme exists for organisations that meet size and approval-history criteria, and a small regional employer will rarely satisfy them, so budgeting for a blanket that will not be approved wastes both money and time.
Cheaper per transfer only if the door opens at all
The blanket L is genuinely useful where it applies, because it lets a qualified organisation establish the relationship once and then move people against it. The criteria are the obstacle. They look at the size of the U.S.
operation, the number of L approvals already obtained or the volume of business done, and a company sending its first or second person south is not the intended user. Hypothetical example: a feed-and-mineral group near Saint-Joachim-de-Shefford budgets for a blanket because a supplier's American parent uses one, and spends four months and a professional fee discovering the threshold is out of reach. The individual petition is the ordinary path and the ordinary budget.
Government amounts appear in the published USCIS fee schedule and are revised, so take the number from that schedule on the day rather than from a quote in an old engagement letter. The larger cost in a small-company transfer is usually not the fee at all. It is the professional time spent assembling corporate evidence the group never had a reason to organise before.